# wx.DateTime¶

wx.DateTime class represents an absolute moment in time.

The type DateTime_t is typedefed as unsigned short and is used to contain the number of years, hours, minutes, seconds and milliseconds.

Global constant wx.DefaultDateTime and synonym for it wx.InvalidDateTime are defined. This constant will be different from any valid wx.DateTime object.

## Static Functions¶

All static functions either set or return the static variables of wx.DateSpan (the country), return the current moment, year, month or number of days in it, or do some general calendar-related actions. Please note that although several function accept an extra Calendar parameter, it is currently ignored as only the Gregorian calendar is supported. Future versions will support other calendars.

## Date Formatting and Parsing¶

The date formatting and parsing functions convert wx.DateTime objects to and from text. The conversions to text are mostly trivial: you can either do it using the default date and time representations for the current locale ( FormatDate and FormatTime), using the international standard representation defined by ISO 8601 ( FormatISODate, FormatISOTime and FormatISOCombined) or by specifying any format at all and using Format directly. The conversions from text are more interesting, as there are much more possibilities to care about. The simplest cases can be taken care of with ParseFormat which can parse any date in the given (rigid) format. ParseRfc822Date is another function for parsing dates in predefined format – the one of RFC 822 which (still…) defines the format of email messages on the Internet. This format cannot be described with strptime(3)-like format strings used by Format, hence the need for a separate function. But the most interesting functions are ParseTime, ParseDate and ParseDateTime. They try to parse the date and time (or only one of them) in ‘free’ format, i.e. allow them to be specified in any of possible ways. These functions will usually be used to parse the (interactive) user input which is not bound to be in any predefined format. As an example, ParseDate can parse the strings such as “tomorrow”, “March first” and even “next Sunday”. Finally notice that each of the parsing functions is available in several overloads: if the input string is a narrow ( char ) string, then a narrow pointer is returned. If the input string is a wide string, a wide int pointer is returned. Finally, if the input parameter is a String , a narrow int pointer is also returned for backwards compatibility but there is also an additional argument of String.const_iterator type in which, if it is not None, an iterator pointing to the end of the scanned string part is returned.

## Class Hierarchy¶

Inheritance diagram for class DateTime:

## Methods Summary¶

 __init__ Default constructor. Add Adds the given date span to this object. ConvertYearToBC Converts the year in absolute notation (i.e. a number which can be negative, positive or zero) to the year in BC/AD notation. DiffAsDateSpan Returns the difference between this object and dt as a wx.DateSpan. Format This function does the same as the standard ANSI C strftime(3) function (http://www.cplusplus.com/reference/clibrary/ctime/strftime.html). FormatDate Identical to calling Format with "%x" argument (which means “preferred date representation for the current locale”). FormatISOCombined Returns the combined date-time representation in the ISO 8601 format "YYYY-MM-DDTHH:MM:SS" . FormatISODate This function returns the date representation in the ISO 8601 format "YYYY-MM-DD" . FormatISOTime This function returns the time representation in the ISO 8601 format "HH:MM:SS" . FormatTime Identical to calling Format with "%X" argument (which means “preferred time representation for the current locale”). FromDMY Construct a DateTime using the supplied parameters. FromHMS Construct a DateTime equal to Today () with the time set to the supplied parameters. FromJDN Construct a DateTime from a Julian Day Number. FromTimeT Construct a DateTime from a C time_t value, the number of seconds since the epoch. FromTimezone Transform the date from the given time zone to the local one. GetAmPmStrings Returns the translations of the strings AM and PM used for time formatting for the current locale. GetAsDOS Returns the date and time in DOS format. GetBeginDST Get the beginning of DST for the given country in the given year (current one by default). GetCentury Returns the century of this date. GetCountry Returns the current default country. GetCurrentMonth Get the current month in given calendar (only Gregorian is currently supported). GetCurrentYear Get the current year in given calendar (only Gregorian is currently supported). GetDateOnly Returns the object having the same date component as this one but time of 00:00:00. GetDay Returns the day in the given timezone (local one by default). GetDayOfYear Returns the day of the year (in 1-366 range) in the given timezone (local one by default). GetEndDST Returns the end of DST for the given country in the given year (current one by default). GetEnglishMonthName Return the standard English name of the given month. GetEnglishWeekDayName Return the standard English name of the given week day. GetFirstWeekDay Acquires the first weekday of a week based on locale and/or OS settings. GetHour Returns the hour in the given timezone (local one by default). GetJDN Synonym for GetJulianDayNumber . GetJulianDayNumber Returns the JDN corresponding to this date. GetLastMonthDay Returns the copy of this object to which SetToLastMonthDay was applied. GetLastWeekDay Returns the copy of this object to which SetToLastWeekDay was applied. GetMJD Synonym for GetModifiedJulianDayNumber . GetMillisecond Returns the milliseconds in the given timezone (local one by default). GetMinute Returns the minute in the given timezone (local one by default). GetModifiedJulianDayNumber Returns the “Modified Julian Day Number” (MJD) which is, by definition, is equal to JDN - 2400000.5. GetMonth Returns the month in the given timezone (local one by default). GetMonthName Gets the full (default) or abbreviated name of the given month. GetNextWeekDay Returns the copy of this object to which SetToNextWeekDay was applied. GetNumberOfDays Returns the number of days in the given month of the given year. GetPrevWeekDay Returns the copy of this object to which SetToPrevWeekDay was applied. GetRataDie Return the Rata Die number of this date. GetSecond Returns the seconds in the given timezone (local one by default). GetTicks Returns the number of seconds since Jan 1, 1970 UTC. GetTimeNow Returns the current time. GetTm Returns broken down representation of the date and time. GetValue Returns the number of milliseconds since Jan 1, 1970 UTC. GetWeekBasedYear Returns the year to which the week containing this date belongs. GetWeekDay Returns the week day in the given timezone (local one by default). GetWeekDayInSameWeek Returns the copy of this object to which SetToWeekDayInSameWeek was applied. GetWeekDayName Gets the full (default) or abbreviated name of the given week day. GetWeekOfMonth Returns the ordinal number of the week in the month (in 1-5 range). GetWeekOfYear Returns the number of the week of the year this date is in. GetYear Returns the year in the given timezone (local one by default). GetYearDay Returns the copy of this object to which SetToYearDay was applied. IsBetween Returns True if IsStrictlyBetween is True or if the date is equal to one of the limit values. IsDST Returns True if the DST is applied for this date in the given country. IsDSTApplicable Returns True if DST was used in the given year (the current one by default) in the given country. IsEarlierThan Returns True if this date precedes the given one. IsEqualTo Returns True if the two dates are strictly identical. IsEqualUpTo Returns True if the date is equal to another one up to the given time interval, i.e. if the absolute difference between the two dates is less than this interval. IsLaterThan Returns True if this date is later than the given one. IsLeapYear Returns True if the year is a leap one in the specified calendar. IsSameDate Returns True if the date is the same without comparing the time parts. IsSameTime Returns True if the time is the same (although dates may differ). IsStrictlyBetween Returns True if this date lies strictly between the two given dates. IsValid Returns True if the object represents a valid time moment. IsWestEuropeanCountry This function returns True if the specified (or default) country is one of Western European ones. IsWorkDay Returns True is this day is not a holiday in the given country. MakeFromTimezone Same as FromTimezone but modifies the object in place. MakeTimezone Modifies the object in place to represent the date in another time zone. MakeUTC This is the same as calling MakeTimezone with the argument GMT0 . Now Returns the object corresponding to the current time in local time zone. ParseDate This function is like ParseDateTime , but it only allows the date to be specified. ParseDateTime Parses the string datetime containing the date and time in free format. ParseFormat This function parses the string date according to the given format. ParseISOCombined This function parses the string containing the date and time in ISO 8601 combined format "YYYY-MM-DDTHH:MM:SS" . ParseISODate This function parses the date in ISO 8601 format "YYYY-MM-DD" . ParseISOTime This function parses the time in ISO 8601 format "HH:MM:SS" . ParseRfc822Date Parses the string date looking for a date formatted according to the RFC 822 in it. ParseTime This functions is like ParseDateTime , but only allows the time to be specified in the input string. ResetTime Reset time to midnight (00:00:00) without changing the date. Set Sets the date and time from the parameters. SetHMS Sets the date to be equal to Today and the time from supplied parameters. SetJDN Sets the date from the so-called Julian Day Number. SetTimeT Constructs the object from timet value holding the number of seconds since Jan 1, 1970 UTC. SetTm Sets the date and time from the broken down representation in the  wx.DateTime.Tm  structure. SetCountry Sets the country to use by default. SetDay Sets the day without changing other date components. SetFromDOS Sets the date from the date and time in DOS format. SetHour Sets the hour without changing other date components. SetMillisecond Sets the millisecond without changing other date components. SetMinute Sets the minute without changing other date components. SetMonth Sets the month without changing other date components. SetSecond Sets the second without changing other date components. SetToCurrent Sets the date and time of to the current values. SetToLastMonthDay Sets the date to the last day in the specified month (the current one by default). SetToLastWeekDay The effect of calling this function is the same as of calling SetToWeekDay (-1, weekday, month, year). SetToNextWeekDay Sets the date so that it will be the first weekday following the current date. SetToPrevWeekDay Sets the date so that it will be the last weekday before the current date. SetToWeekDay Sets the date to the n-th weekday in the given month of the given year (the current month and year are used by default). SetToWeekDayInSameWeek Adjusts the date so that it will still lie in the same week as before, but its week day will be the given one. SetToWeekOfYear Set the date to the given weekday in the week number numWeek of the given year . SetToYearDay Sets the date to the day number yday in the same year (i.e. unlike the other functions, this one does not use the current year). SetYear Sets the year without changing other date components. Subtract Subtracts the given time span from this object. ToTimezone Transform the date to the given time zone. ToUTC This is the same as calling ToTimezone with the argument GMT0 . Today Returns the object corresponding to the midnight of the current day (i.e. the same as wx.Now , but the time part is set to 0). UNow Returns the object corresponding to the current time including the milliseconds. __repr__ __str__

## Class API¶

class wx.DateTime(object)

Possible constructors:

DateTime()

DateTime(date)

DateTime(day, month, year=Inv_Year, hour=0, minute=0, second=0,
millisec=0)


DateTime class represents an absolute moment in time.

### Methods¶

__init__(self, *args, **kw)

__init__ (self)

Default constructor.

Use one of the Set functions to initialize the object later.

__init__ (self, date)

Copy constructor.

Parameters

date (wx.DateTime) –

__init__ (self, day, month, year=Inv_Year, hour=0, minute=0, second=0, millisec=0)

Same as Set .

Parameters
• day (int) –

• month (DateTime.Month) –

• year (int) –

• hour (int) –

• minute (int) –

• second (int) –

• millisec (int) –

Add(self, *args, **kw)

Adds the given date span to this object.

Parameters

diff (wx.DateSpan) –

Return type

wx.DateTime

Adds the given time span to this object.

Parameters

diff (wx.TimeSpan) –

Return type

wx.DateTime

static ConvertYearToBC(year)

Converts the year in absolute notation (i.e. a number which can be negative, positive or zero) to the year in BC/AD notation.

For the positive years, nothing is done, but the year 0 is year 1 BC and so for other years there is a difference of 1.

This function should be used like this:

dt = wx.DateTimeFromDMY(8, 5, 1977)
y = dt.GetYear()
epoch = (y > 0 and ["AD"] or ["BC"])[0]
print "The year is %d%s"%(wx.DateTime.ConvertYearToBC(y), epoch)

Parameters

year (int) –

Return type

int

DiffAsDateSpan(self, dt)

Returns the difference between this object and dt as a wx.DateSpan.

This method allows finding the number of entire years, months, weeks and days between dt and this date.

Parameters

dt (wx.DateTime) –

Return type

wx.DateSpan

New in version 2.9.5.

Format(self, format=DefaultDateTimeFormat, tz=Local)

This function does the same as the standard ANSI C strftime(3) function (http://www.cplusplus.com/reference/clibrary/ctime/strftime.html).

Please see its description for the meaning of format parameter.

Notice that POSIX "%g" , "%G" , "%V" and "%z" format specifiers are supported even if the standard library doesn’t support them (e.g. MSVC).

It also accepts a few Widgets-specific extensions: you can optionally specify the width of the field to follow using printf(3)-like syntax and the format specification "%l" can be used to get the number of milliseconds.

Parameters
Return type

string

FormatDate(self)

Identical to calling Format with "%x" argument (which means “preferred date representation for the current locale”).

Return type

string

FormatISOCombined(self, sep='T')

Returns the combined date-time representation in the ISO 8601 format "YYYY-MM-DDTHH:MM:SS" .

The sep parameter default value produces the result exactly corresponding to the ISO standard, but it can also be useful to use a space as separator if a more human-readable combined date-time representation is needed.

Parameters

sep (int) –

Return type

string

FormatISODate(self)

This function returns the date representation in the ISO 8601 format "YYYY-MM-DD" .

Return type

string

FormatISOTime(self)

This function returns the time representation in the ISO 8601 format "HH:MM:SS" .

Return type

string

FormatTime(self)

Identical to calling Format with "%X" argument (which means “preferred time representation for the current locale”).

Return type

string

static FromDMY(day, month, year=Inv_Year, hour=0, minute=0, second=0, millisecond=0)

Construct a DateTime using the supplied parameters.

Return type

wx.DateTime

static FromHMS(hour, minute=0, second=0, millisecond=0)

Construct a DateTime equal to Today () with the time set to the supplied parameters.

Return type

wx.DateTime

static FromJDN(jdn)

Construct a DateTime from a Julian Day Number.

By definition, the Julian Day Number, usually abbreviated as JDN, of a particular instant is the fractional number of days since 12 hours Universal Coordinated Time (Greenwich mean noon) on January 1 of the year -4712 in the Julian proleptic calendar.

Return type

wx.DateTime

static FromTimeT(timet)

Construct a DateTime from a C time_t value, the number of seconds since the epoch.

Return type

wx.DateTime

FromTimezone(self, tz, noDST=False)

Transform the date from the given time zone to the local one.

If noDST is True, no DST adjustments will be made.

If tz parameter is wx.DateTime.Local , no adjustment is performed.

Parameters
Return type

wx.DateTime

Returns

The date adjusted by the different between the given and the local time zones.

static GetAmPmStrings()

Returns the translations of the strings AM and PM used for time formatting for the current locale.

Either of the pointers may be None if the corresponding value is not needed.

Return type

tuple

Returns

( am, pm )

GetAsDOS(self)

Returns the date and time in DOS format.

Return type

int

static GetBeginDST(year=Inv_Year, country=Country_Default)

Get the beginning of DST for the given country in the given year (current one by default).

This function suffers from limitations described in the DST overview.

Parameters
• year (int) –

• country (Country) –

Return type

wx.DateTime

GetCentury(self, tz=Local)

Returns the century of this date.

Parameters

tz (wx.DateTime.TimeZone) –

Return type

int

static GetCountry()

Returns the current default country.

The default country is used for DST calculations, for example.

Return type

wx.DateTime.Country

static GetCurrentMonth(cal=Gregorian)

Get the current month in given calendar (only Gregorian is currently supported).

Parameters

cal (Calendar) –

Return type

wx.DateTime.Month

static GetCurrentYear(cal=Gregorian)

Get the current year in given calendar (only Gregorian is currently supported).

Parameters

cal (Calendar) –

Return type

int

GetDateOnly(self)

Returns the object having the same date component as this one but time of 00:00:00.

Return type

wx.DateTime

New in version 2.8.2.

GetDay(self, tz=Local)

Returns the day in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

GetDayOfYear(self, tz=Local)

Returns the day of the year (in 1-366 range) in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

static GetEndDST(year=Inv_Year, country=Country_Default)

Returns the end of DST for the given country in the given year (current one by default).

Parameters
• year (int) –

• country (Country) –

Return type

wx.DateTime

static GetEnglishMonthName(month, flags=Name_Full)

Return the standard English name of the given month.

This function always returns “January” or “Jan” for January, use GetMonthName to retrieve the name of the month in the users current locale.

Parameters
• month (DateTime.Month) – One of wx.DateTime.Jan , …, wx.DateTime.Dec values.

• flags (NameFlags) – Either Name_Full (default) or Name_Abbr.

Return type

string

New in version 2.9.0.

static GetEnglishWeekDayName(weekday, flags=Name_Full)

Return the standard English name of the given week day.

This function always returns “Monday” or “Mon” for Monday, use GetWeekDayName to retrieve the name of the month in the users current locale.

Parameters
• weekday (DateTime.WeekDay) – One of wx.DateTime.Sun , …, wx.DateTime.Sat values.

• flags (NameFlags) – Either Name_Full (default) or Name_Abbr.

Return type

string

New in version 2.9.0.

static GetFirstWeekDay(firstDay)

Acquires the first weekday of a week based on locale and/or OS settings.

If the information was not available, returns Sun .

Parameters

firstDay (WeekDay) – The address of a WeekDay variable to which the first weekday will be assigned to.

Return type

bool

Returns

If the first day could not be determined, returns False, and firstDay is set to a fallback value.

New in version 4.1/wxWidgets-3.1.1.

GetHour(self, tz=Local)

Returns the hour in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

GetJDN(self)

Synonym for GetJulianDayNumber .

Return type

float

GetJulianDayNumber(self)

Returns the JDN corresponding to this date.

Beware of rounding errors!

Return type

float

GetLastMonthDay(self, month=Inv_Month, year=Inv_Year)

Returns the copy of this object to which SetToLastMonthDay was applied.

Parameters
• month (DateTime.Month) –

• year (int) –

Return type

wx.DateTime

GetLastWeekDay(self, weekday, month=Inv_Month, year=Inv_Year)

Returns the copy of this object to which SetToLastWeekDay was applied.

Parameters
• weekday (DateTime.WeekDay) –

• month (DateTime.Month) –

• year (int) –

Return type

wx.DateTime

GetMJD(self)

Synonym for GetModifiedJulianDayNumber .

Return type

float

GetMillisecond(self, tz=Local)

Returns the milliseconds in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

GetMinute(self, tz=Local)

Returns the minute in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

GetModifiedJulianDayNumber(self)

Returns the “Modified Julian Day Number” (MJD) which is, by definition, is equal to JDN - 2400000.5.

The MJDs are simpler to work with as the integral MJDs correspond to midnights of the dates in the Gregorian calendar and not the noons like JDN. The MJD 0 represents Nov 17, 1858.

Return type

float

GetMonth(self, tz=Local)

Returns the month in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

wx.DateTime.Month

static GetMonthName(month, flags=Name_Full)

Gets the full (default) or abbreviated name of the given month.

This function returns the name in the current locale, use GetEnglishMonthName to get the untranslated name if necessary.

Parameters
• month (DateTime.Month) – One of wx.DateTime.Jan , …, wx.DateTime.Dec values.

• flags (NameFlags) – Either Name_Full (default) or Name_Abbr.

Return type

string

GetNextWeekDay(self, weekday)

Returns the copy of this object to which SetToNextWeekDay was applied.

Parameters

weekday (DateTime.WeekDay) –

Return type

wx.DateTime

static GetNumberOfDays(month, year=Inv_Year, cal=Gregorian)

Returns the number of days in the given month of the given year.

The only supported value for cal currently is Gregorian .

Parameters
• month (DateTime.Month) –

• year (int) –

• cal (Calendar) –

Return type

intshort

GetPrevWeekDay(self, weekday)

Returns the copy of this object to which SetToPrevWeekDay was applied.

Parameters

weekday (DateTime.WeekDay) –

Return type

wx.DateTime

GetRataDie(self)

Return the Rata Die number of this date.

By definition, the Rata Die number is a date specified as the number of days relative to a base date of December 31 of the year 0. Thus January 1 of the year 1 is Rata Die day 1.

Return type

float

GetSecond(self, tz=Local)

Returns the seconds in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

intshort

GetTicks(self)

Returns the number of seconds since Jan 1, 1970 UTC.

This function is provided solely for interoperability with the standard C library and other libraries using time_t values. If you just need to get the value represented by this object as a number, use GetValue instead, which doesn’t lose precision and covers the entire supported range of dates, unlike this one which is limited to the range of positive 32 bit values, i.e. from Jan 1, 1970 to around Jan 19, 2038 and returns -1 for the dates outside of it.

Additionally, this method must be called on an initialized date object and an assertion failure occurs if it is called on an object for which IsValid is False.

Return type

int

static GetTimeNow()

Returns the current time.

Return type

int

GetTm(self, tz=Local)

Returns broken down representation of the date and time.

Parameters

tz (wx.DateTime.TimeZone) –

Return type

wx.DateTime.Tm

GetValue(self)

Returns the number of milliseconds since Jan 1, 1970 UTC.

Directly returns the internal representation of wx.DateTime object as the number of milliseconds (positive or negative) since the Unix/C epoch.

Return type

long

GetWeekBasedYear(self, tz)

Returns the year to which the week containing this date belongs.

The value returned by this function is the same as the year, except, possibly, for a few days at the very beginning and very end of the year if they belong to a week which is mostly (i.e. at least 4 days) is in another year in which case that other (previous or next) year is returned.

For example, January 1 in 2015 belongs to the first year of 2015, hence GetWeekOfYear for it returns 1 and this function returns 2015. However January 1 in 2016 belongs to the last week of 2015 according to ISO 8601 standard rules and so GetWeekOfYear returns 53 and this function returns 2015, although GetYear returns 2016.

Parameters

tz (wx.DateTime.TimeZone) –

Return type

int

New in version 4.1/wxWidgets-3.1.0.

GetWeekDay(self, *args, **kw)

GetWeekDay (self, tz=Local)

Returns the week day in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

wx.DateTime.WeekDay

GetWeekDay (self, weekday, n=1, month=Inv_Month, year=Inv_Year)

Returns the copy of this object to which SetToWeekDay was applied.

Parameters
• weekday (DateTime.WeekDay) –

• n (int) –

• month (DateTime.Month) –

• year (int) –

Return type

wx.DateTime

GetWeekDayInSameWeek(self, weekday, flags=Monday_First)

Returns the copy of this object to which SetToWeekDayInSameWeek was applied.

Parameters
• weekday (DateTime.WeekDay) –

• flags (WeekFlags) –

Return type

wx.DateTime

static GetWeekDayName(weekday, flags=Name_Full)

Gets the full (default) or abbreviated name of the given week day.

This function returns the name in the current locale, use GetEnglishWeekDayName to get the untranslated name if necessary.

Parameters
• weekday (DateTime.WeekDay) – One of wx.DateTime.Sun , …, wx.DateTime.Sat values.

• flags (NameFlags) – Either Name_Full (default) or Name_Abbr.

Return type

string

GetWeekOfMonth(self, flags=Monday_First, tz=Local)

Returns the ordinal number of the week in the month (in 1-5 range).

As GetWeekOfYear , this function supports both conventions for the week start.

Parameters
Return type

intshort

GetWeekOfYear(self, flags=Monday_First, tz=Local)

Returns the number of the week of the year this date is in.

The first week of the year is, according to international standards, the one containing Jan 4 or, equivalently, the first week which has Thursday in this year. Both of these definitions are the same as saying that the first week of the year must contain more than half of its days in this year. Accordingly, the week number will always be in 1-53 range (52 for non-leap years).

The function depends on the week start convention specified by the flags argument but its results for Sunday_First are not well-defined as the ISO definition quoted above applies to the weeks starting on Monday only.

Parameters
Return type

intshort

GetYear(self, tz=Local)

Returns the year in the given timezone (local one by default).

Parameters

tz (wx.DateTime.TimeZone) –

Return type

int

GetYearDay(self, yday)

Returns the copy of this object to which SetToYearDay was applied.

Parameters

yday (int) –

Return type

wx.DateTime

IsBetween(self, t1, t2)

Returns True if IsStrictlyBetween is True or if the date is equal to one of the limit values.

Parameters
Return type

bool

IsDST(self, country=Country_Default)

Returns True if the DST is applied for this date in the given country.

Parameters

country (Country) –

Return type

int

static IsDSTApplicable(year=Inv_Year, country=Country_Default)

Returns True if DST was used in the given year (the current one by default) in the given country.

Parameters
• year (int) –

• country (Country) –

Return type

bool

IsEarlierThan(self, datetime)

Returns True if this date precedes the given one.

Parameters

datetime (wx.DateTime) –

Return type

bool

IsEqualTo(self, datetime)

Returns True if the two dates are strictly identical.

Parameters

datetime (wx.DateTime) –

Return type

bool

IsEqualUpTo(self, dt, ts)

Returns True if the date is equal to another one up to the given time interval, i.e. if the absolute difference between the two dates is less than this interval.

Parameters
Return type

bool

IsLaterThan(self, datetime)

Returns True if this date is later than the given one.

Parameters

datetime (wx.DateTime) –

Return type

bool

static IsLeapYear(year=Inv_Year, cal=Gregorian)

Returns True if the year is a leap one in the specified calendar.

This functions supports Gregorian and Julian calendars.

Parameters
Return type

bool

IsSameDate(self, dt)

Returns True if the date is the same without comparing the time parts.

Parameters

dt (wx.DateTime) –

Return type

bool

IsSameTime(self, dt)

Returns True if the time is the same (although dates may differ).

Parameters

dt (wx.DateTime) –

Return type

bool

IsStrictlyBetween(self, t1, t2)

Returns True if this date lies strictly between the two given dates.

Parameters
Return type

bool

IsValid(self)

Returns True if the object represents a valid time moment.

Return type

bool

static IsWestEuropeanCountry(country=Country_Default)

This function returns True if the specified (or default) country is one of Western European ones.

It is used internally by wx.DateTime to determine the DST convention and date and time formatting rules.

Parameters

country (Country) –

Return type

bool

IsWorkDay(self, country=Country_Default)

Returns True is this day is not a holiday in the given country.

Parameters

country (Country) –

Return type

bool

MakeFromTimezone(self, tz, noDST=False)

Same as FromTimezone but modifies the object in place.

Parameters
Return type

wx.DateTime

MakeTimezone(self, tz, noDST=False)

Modifies the object in place to represent the date in another time zone.

If noDST is True, no DST adjustments will be made.

Parameters
Return type

wx.DateTime

MakeUTC(self, noDST=False)

This is the same as calling MakeTimezone with the argument GMT0 .

Parameters

noDST (bool) –

Return type

wx.DateTime

static Now()

Returns the object corresponding to the current time in local time zone.

Example:

now = wx.DateTime.Now()
print "Current time in Paris:\t%s\n"%(now.Format("%c", wx.DateTime.CET))

Return type

wx.DateTime

Note

This function is accurate up to seconds. UNow can be used if better precision is required.

ParseDate(self, date)

This function is like ParseDateTime , but it only allows the date to be specified.

It is thus less flexible then ParseDateTime , but also has less chances to misinterpret the user input.

See ParseFormat for the description of function parameters and return value.

Parameters

date (string) –

Return type

int

ParseDateTime(self, datetime)

Parses the string datetime containing the date and time in free format.

This function tries as hard as it can to interpret the given string as date and time. Unlike ParseRfc822Date , it will accept anything that may be accepted and will only reject strings which cannot be parsed in any way at all. Notice that the function will fail if either date or time part is present but not both, use ParseDate or ParseTime to parse strings containing just the date or time component.

See ParseFormat for the description of function parameters and return value.

Parameters

datetime (string) –

Return type

int

ParseFormat(self, *args, **kw)

ParseFormat (self, date, format, dateDef)

This function parses the string date according to the given format.

The system strptime(3) function is used whenever available, but even if it is not, this function is still implemented, although support for locale-dependent format specifiers such as "%c" , "%x" or "%X" may not be perfect and GNU extensions such as "%z" and "%Z" are not implemented. This function does handle the month and weekday names in the current locale on all platforms, however.

Please see the description of the ANSI C function strftime(3) for the syntax of the format string.

The dateDef parameter is used to fill in the fields which could not be determined from the format string. For example, if the format is "%d" (the day of the month), the month and the year are taken from dateDef. If it is not specified, Today is used as the default date.

Example of using this function:

dt = wx.DateTime() # Uninitialized datetime
bDate = "25/12/2012"

if dt.ParseFormat(bDate, "%d-%m-%Y") == -1:
# This datetime format is wrong on purpose
print "Wrong format"

elif dt.ParseFormat(bDate, "%d/%m/%Y") >= 0:
# This is correct
print "Format OK!", dt

Parameters
• date (string) – The string to be parsed.

• format (string) – strptime()-like format string.

• dateDef (wx.DateTime) – Used to fill in the date components not specified in the date string.

Return type

int

Returns

-1 if the parse failed, the number of characters parsed otherwise.

ParseFormat (self, date, format)

This version of the ParseFormat method works the same, but with missing values filled in from Today.

Parameters
• date (string) –

• format (string) –

Return type

int

ParseFormat (self, date)

This version uses “%c” as the format code, which is the same default used by Format.

Parameters

date (string) –

Return type

int

ParseISOCombined(self, date, sep='T')

This function parses the string containing the date and time in ISO 8601 combined format "YYYY-MM-DDTHH:MM:SS" .

The separator between the date and time parts must be equal to sep for the function to succeed.

Parameters
• date (string) –

• sep (int) –

Return type

bool

Returns

True if the entire string was parsed successfully, False otherwise.

ParseISODate(self, date)

This function parses the date in ISO 8601 format "YYYY-MM-DD" .

Parameters

date (string) –

Return type

bool

Returns

True if the entire string was parsed successfully, False otherwise.

ParseISOTime(self, date)

This function parses the time in ISO 8601 format "HH:MM:SS" .

Parameters

date (string) –

Return type

bool

Returns

True if the entire string was parsed successfully, False otherwise.

ParseRfc822Date(self, date)

Parses the string date looking for a date formatted according to the RFC 822 in it.

The exact description of this format may, of course, be found in the RFC (section 5), but, briefly, this is the format used in the headers of Internet email messages and one of the most common strings expressing date in this format may be something like "Sat, 18 Dec 1999 00:48:30 +0100" .

Returns None if the conversion failed, otherwise return the pointer to the character immediately following the part of the string which could be parsed. If the entire string contains only the date in RFC 822 format, the returned pointer will be pointing to a NUL character.

This function is intentionally strict, it will return an error for any string which is not RFC 822 compliant. If you need to parse date formatted in more free ways, you should use ParseDateTime or ParseDate instead.

See ParseFormat for the description of function parameters and return value.

Parameters

date (string) –

Return type

int

ParseTime(self, time)

This functions is like ParseDateTime , but only allows the time to be specified in the input string.

See ParseFormat for the description of function parameters and return value.

Parameters

time (string) –

Return type

int

ResetTime(self)

Reset time to midnight (00:00:00) without changing the date.

Return type

wx.DateTime

Set(self, day, month, year=Inv_Year, hour=0, minute=0, second=0, millisec=0)

Sets the date and time from the parameters.

If the function parameters are invalid, e.g. month is February and day is 30, the object is left in an invalid state, i.e. IsValid method will return False.

If the specified time moment is invalid due to DST, i.e. it falls into the “missing” hour on the date on which the DST starts, a valid wx.DateTime object is still constructed but its hour component is moved forward to ensure that it corresponds to a valid moment in the local time zone. For example, in the CET time zone the DST started on 2013-03-31T02:00:00 in 2013 and so setting the object to 2:30 at this date actually sets the hour to 3, and not 2.

Parameters
• day (int) –

• month (DateTime.Month) –

• year (int) –

• hour (int) –

• minute (int) –

• second (int) –

• millisec (int) –

Return type

wx.DateTime

SetHMS(self, hour, minute=0, second=0, millisec=0)

Sets the date to be equal to Today and the time from supplied parameters.

See the full Set overload for the remarks about DST.

Parameters
• hour (int) –

• minute (int) –

• second (int) –

• millisec (int) –

Return type

wx.DateTime

SetJDN(self, jdn)

Sets the date from the so-called Julian Day Number.

By definition, the Julian Day Number, usually abbreviated as JDN, of a particular instant is the fractional number of days since 12 hours Universal Coordinated Time (Greenwich mean noon) on January 1 of the year -4712 in the Julian proleptic calendar.

Parameters

jdn (float) –

Return type

wx.DateTime

SetTimeT(self, timet)

Constructs the object from timet value holding the number of seconds since Jan 1, 1970 UTC.

If timet is invalid, i.e.:

-1


wx.DateTime becomes invalid too, i.e. its IsValid will return False.

Parameters

timet (int) –

Return type

wx.DateTime

SetTm(self, tm)

Sets the date and time from the broken down representation in the  wx.DateTime.Tm  structure.

Parameters

tm (wx.DateTime.Tm) –

Return type

wx.DateTime

static SetCountry(country)

Sets the country to use by default.

This setting influences the DST calculations, date formatting and other things.

Parameters

country (Country) –

SetDay(self, day)

Sets the day without changing other date components.

Parameters

day (int) –

Return type

wx.DateTime

SetFromDOS(self, ddt)

Sets the date from the date and time in DOS format.

Parameters

ddt (long) –

Return type

wx.DateTime

SetHour(self, hour)

Sets the hour without changing other date components.

Parameters

hour (int) –

Return type

wx.DateTime

SetMillisecond(self, millisecond)

Sets the millisecond without changing other date components.

Parameters

millisecond (int) –

Return type

wx.DateTime

SetMinute(self, minute)

Sets the minute without changing other date components.

Parameters

minute (int) –

Return type

wx.DateTime

SetMonth(self, month)

Sets the month without changing other date components.

Parameters

month (DateTime.Month) –

Return type

wx.DateTime

SetSecond(self, second)

Sets the second without changing other date components.

Parameters

second (int) –

Return type

wx.DateTime

SetToCurrent(self)

Sets the date and time of to the current values.

Same as assigning the result of wx.Now to this object.

Return type

wx.DateTime

SetToLastMonthDay(self, month=Inv_Month, year=Inv_Year)

Sets the date to the last day in the specified month (the current one by default).

Parameters
• month (DateTime.Month) –

• year (int) –

Return type

wx.DateTime

Returns

The reference to the modified object itself.

SetToLastWeekDay(self, weekday, month=Inv_Month, year=Inv_Year)

The effect of calling this function is the same as of calling SetToWeekDay (-1, weekday, month, year).

The date will be set to the last weekday in the given month and year (the current ones by default). Always returns True.

Parameters
• weekday (DateTime.WeekDay) –

• month (DateTime.Month) –

• year (int) –

Return type

bool

SetToNextWeekDay(self, weekday)

Sets the date so that it will be the first weekday following the current date.

Parameters

weekday (DateTime.WeekDay) –

Return type

wx.DateTime

Returns

The reference to the modified object itself.

SetToPrevWeekDay(self, weekday)

Sets the date so that it will be the last weekday before the current date.

Parameters

weekday (DateTime.WeekDay) –

Return type

wx.DateTime

Returns

The reference to the modified object itself.

SetToWeekDay(self, weekday, n=1, month=Inv_Month, year=Inv_Year)

Sets the date to the n-th weekday in the given month of the given year (the current month and year are used by default).

The parameter n may be either positive (counting from the beginning of the month) or negative (counting from the end of it).

For example, SetToWeekDay(wxDateTime.Wed, 2) will set the date to the second Wednesday in the current month and SetToWeekDay( wx.DateTime.Sun , -1) will set the date to the last Sunday in the current month.

Note that leaving the month or year parameters as their default values will result in the current month or year being substituted, overwriting any previous values in the wx.DateTime object.

Parameters
• weekday (DateTime.WeekDay) –

• n (int) –

• month (DateTime.Month) –

• year (int) –

Return type

bool

Returns

True if the date was modified successfully, False otherwise meaning that the specified date doesn’t exist.

SetToWeekDayInSameWeek(self, weekday, flags=Monday_First)

Adjusts the date so that it will still lie in the same week as before, but its week day will be the given one.

Parameters
• weekday (DateTime.WeekDay) –

• flags (WeekFlags) –

Return type

wx.DateTime

Returns

The reference to the modified object itself.

static SetToWeekOfYear(year, numWeek, weekday=Mon)

Set the date to the given weekday in the week number numWeek of the given year .

The number should be in range 1-53.

Note that the returned date may be in a different year than the one passed to this function because both the week 1 and week 52 or 53 (for leap years) contain days from different years. See GetWeekOfYear for the explanation of how the year weeks are counted.

Parameters
• year (int) –

• numWeek (int) –

• weekday (DateTime.WeekDay) –

Return type

wx.DateTime

SetToYearDay(self, yday)

Sets the date to the day number yday in the same year (i.e. unlike the other functions, this one does not use the current year).

The day number should be in the range 1-366 for the leap years and 1-365 for the other ones.

Parameters

yday (int) –

Return type

wx.DateTime

Returns

The reference to the modified object itself.

SetYear(self, year)

Sets the year without changing other date components.

Parameters

year (int) –

Return type

wx.DateTime

Subtract(self, *args, **kw)

Subtract (self, diff)

Subtracts the given time span from this object.

Parameters

diff (wx.TimeSpan) –

Return type

wx.DateTime

Subtract (self, diff)

Subtracts the given date span from this object.

Parameters

diff (wx.DateSpan) –

Return type

wx.DateTime

Subtract (self, dt)

Subtracts another date from this one and returns the difference between them as a wx.TimeSpan.

Parameters

dt (wx.DateTime) –

Return type

wx.TimeSpan

ToTimezone(self, tz, noDST=False)

Transform the date to the given time zone.

If noDST is True, no DST adjustments will be made.

If tz parameter is wx.DateTime.Local , no adjustment is performed.

Parameters
Return type

wx.DateTime

Returns

The date adjusted by the different between the local and the given time zones.

ToUTC(self, noDST=False)

This is the same as calling ToTimezone with the argument GMT0 .

Parameters

noDST (bool) –

Return type

wx.DateTime

static Today()

Returns the object corresponding to the midnight of the current day (i.e. the same as wx.Now , but the time part is set to 0).

Return type

wx.DateTime

static UNow()

Returns the object corresponding to the current time including the milliseconds.

Like wx.Now , this method creates the wx.DateTime object corresponding to the current moment in local time.

Return type

wx.DateTime

wx.Now , GetUTCTimeMillis

__repr__(self)

__str__(self)

### Properties¶

DayOfYear

JDN

JulianDayNumber

LastMonthDay

MJD

ModifiedJulianDayNumber

RataDie

Ticks

WeekOfMonth

WeekOfYear

day

hour

millisecond

minute

month

second

year