MQL5 ReferenceStandard LibraryPanels and DialogsCDateTimeDaysInMonth MonthNameShortMonthNameDayNameShortDayNameDaysInMonthDateTimeDateTimeSecMinHourDayMonYearSecDecSecIncMinDecMinIncHourDecHourIncDayDecDayIncMonDecMonIncYearDecYearInc DaysInMonth Gets number of days in month. int DaysInMonth() const Return Value Number of days in month. ShortDayName DateTime