IsLeapYear()

Checks if the given date is a leap year.

Syntax

      IsLeapYear( <dDate> )  --> lTrueOrFalse

Arguments

<dDate> A valid date.

Returns

<lTrueOrFalse> A logical that indicates if the date year is leap

Description

This function returns true if the given date is a leap year and false if isn’t.

Examples

      ? IsLeapYear( hb_SToD( "20000101" ) ) // -> .T.
      ? IsLeapYear( hb_SToD( "20010101" ) ) // -> .F.

Compliance

This function is new in Harbour.

Platforms

All

Files

Library is libmisc

Seealso

DaysInMonth()

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DaysToMonth()

Total number of days from first of Jan to beginning of nMonth.

Syntax

       DaysToMonth( <nMonth>, <lLeapYear> ) -> nDaysToMonth

Arguments

<nMonth> Number of month

<lLeapYear> Is year is leapyear

Description

lLeap is FALSE for a non-leap year but TRUE if it is. If so and nMonth is greater than 2, ndays is incremented

Compliance

DaysToMonth() is a new function in Harbour’s CT3 library.

Platforms

All

Files

Source is dattime2.prg, library is libct.

Seealso

DaysInMonth()

Harbour All Functions – D

Date()
Day()
Days()

DaysInMonth()
DaysToMonth()

dbAppend()
dbClearFilter()
dbCloseAll()
dbCloseArea()
dbCommit()
dbCommitAll()
dbCreate()
dbDelete()
dbEval()
dbF()
dbFilter()
dbGoBottom()
dbGoTo()
dbGoTop()
dbReCall()
dbRLock()
dbRLockList()
dbRUnlock()
dbSeek()
dbSelectArea()
dbSetDriver()
dbSetFilter()
dbSkip()
dbSkipper()
dbStruct()
dbUnlock()
dbUnlockAll()
dbUseArea()

DecToBin()
DecToHexa()
DecToOctal()

Deleted()
Descend()
DevOutPict()
DirChange()
DirRemove()
DiskSpace()

DMY()
Do()
DoW()

DOY
DToC()

DToR
DToS()

Date & Time Functions

ADays	Returns an array with the days names
AddMonth	Adds or subtracts months to/from a date
AMonths	Returns an array with the months names
BOM	Beginning date Of Month of given date
BOQ	Date of beginning Of quarter containing given date
BOY	Date to find first day of year, default is DATE()
CDoW	Converts a date to the day of week
CMonth	Return the name of the month
CToD	Converts a character string to a date expression
CToDoW	Convert name of day of the week to its ordinal number
CToMonth	Convert name of month to its ordinal number
Date	Return the Current OS Date
Day	Return the numeric day of the month
Days	Convert elapsed seconds into days
DaysInMonth	Returns the number of days in month
DaysToMonth	Total number of days from first of Jan to beginning of nMonth
DMY	Returns the date as a string in DD Month YY format
DoW	Value for the day of week
DOY	Determines the day of the year for a specific date
DToC	Date to character conversion
DToS	Date to string conversion
ElapTime	Calculates elapted time
EOM	End Of Month
EOQ	Date of end of quarter
EOY	Last date Of Year
IsLeap	Tests if a specific year is a leap year
IsLeapYear	Checks if the given date is a leap year
LastDayOM	Determines the number of days in a month
MDY	Returns the date as a string in Month DD, YY or Month DD, YYYY
Month	Converts a date expression to a month value
NToCDoW	Find day name by num of day
NToCMonth	Find a month name by the number of month
Quarter	Returns a number equal to the quarter in which a date falls
Seconds	Returns the number of elapsed seconds past midnight
Secs	Return the number of seconds from the system date
SecToTime	Converts seconds into a time string
Time	Returns the system time as a string
TimeValid	Determines whether a specified time is valid
TimeToSec	Calculates the seconds since midnight
WaitPeriod	Pauses a specified time in increments of 1/100 seconds
Week	Returns the calendar week a number
WOY	Gets the week number of the year
Year	Converts the year portion of a date into a numeric value