FT Date-Time

 FT_ACCTADJ()     Adjust beginning or ending fiscal pd. dates to acctg. dates
 FT_ACCTMONTH()   Return accounting month data
 FT_ACCTQTR()     Return accounting quarter data
 FT_ACCTWEEK()    Return accounting week data
 FT_ACCTYEAR()    Return accounting year data
 FT_ADDWKDY()     Return true number of days to add given number of workdays
 FT_CALENDAR()    Display date/time calendar, find a date, return calendar data.
 FT_CIV2MIL()     Convert usual civilian format time to military time.
 FT_DATECNFG()    Set beginning of year/week for FT_ date functions
 FT_DAYOFYR()     Return calendar, fiscal or accounting day data
 FT_DAYTOBOW()    Calculate no. of days between date and beginning of week
 FT_DOY()         Find number of day within year
 FT_EASTER()      Return the date of Easter
 FT_ELAPMIN()     Return difference, in minutes, between two mil format times.
 FT_ELAPSED()     Return elapsed time between two days and/or times
 FT_ELTIME()      Compute difference between times in hours, minutes, seconds.
 FT_FDAY()        Return first day of the month
 FT_LDAY()        Return last day of the month
 FT_MADD()        Add or subtract months to/from a date
 FT_MIL2CIV()     Convert time in military format to civilian format.
 FT_MIL2MIN()     Convert time in military format to number of minute of day.
 FT_MIN2DHM()     Convert numeric minutes to days, hours and minutes.
 FT_MIN2MIL()     Convert minute of day to military format time.
 FT_MONTH()       Return Calendar or Fiscal Month Data
 FT_QTR()         Return Calendar or Fiscal Quarter Data.
 FT_SYS2MIL()     Convert system time to military time format.
 FT_WEEK()        Return calendar or fiscal week data
 FT_WORKDAYS()    Return number of work days between two dates
 FT_WOY()         Find number of week within year
 FT_YEAR()        Return calendar or fiscal year data

FT_YEAR

FT_YEAR()
 Return calendar or fiscal year data

 Syntax

      FT_YEAR( [ <dGivenDate> ] ) -> aDateInfo

 Arguments

     <dGivenDate> is any valid date in any date format.  Defaults
     to current system date if not supplied.

 Returns

     A three element array containing the following data:

        aDateInfo[1] - The year as a character string "YYYY"
        aDateInfo[2] - The beginning date of the year
        aDateInfo[3] - The ending date of the year

 Description

     FT_YEAR() returns an array containing data about the year
     containing the given date.

     Normally the return data will be based on a year beginning
     on January 1st.

     The beginning of year date can be changed by using FT_DATECNFG(),
     which will affect all subsequent calls to FT_YEAR() until another
     call to FT_DATECNFG().

     The beginning of year date may be reset to January 1 by calling
     FT_DATECNFG() with no parameters.

 Examples

     // Get info about year containing 9/15/90, assuming default
     // beginning of year is January 1st.
     aDateInfo := FT_YEAR( Ctod("09/15/90") )
     ? aDateInfo[1]   //  1990
     ? aDateInfo[2]   //  01/01/90     beginning of year
     ? aDateInfo[3]   //  12/31/90     end of year

     // get info about current year (1991).
     aDateInfo := FT_YEAR()
     ? aDateInfo[1]   //  1991
     ? aDateInfo[2]   //  01/01/91   beginning of year
     ? aDateInfo[3]   //  12/31/91   end of year

 Source: YEAR.PRG

 Author: Jo W. French dba Practical Computing

See Also: FT_DATECNFG() FT_WEEK() FT_MONTH() FT_QTR()

FT_WOY

FT_WOY()
 Find number of week within year

 Syntax

      FT_WOY( <dDate> ) -> <nResult>

 Arguments

     <dDate> is a date in the form "mm/dd/yy" or "mm/dd/yyyy"

 Returns

     Return numeric position of week within the year or NIL if
     parameter does not conform.

 Description

     Considers a full week as starting on Sunday, ending on Saturday.
     First week of year (week 1) may start on any day, and thus
       contain any number of days.
     Final week of year (week 53) may contain any number of days.
     Handles dates with CENTURY ON|OFF, to allow for 21st century.
     Date validation must be external to this function.

 Examples

     These code fragments find the week number, given a date.

     // literal character date
     dDate  := CTOD("01/01/91")
     nWkNum := FT_WOY(dDate)              // result:  1

     // presume DOS date to be 01/06/91
     nWkNum := FT_WOY(DATE())             // result:  2

     // date input
     cDate  := SPACE(8)
     @ 4,10 get cDate PICT "##/##/##"     // input 07/04/91
     READ
     nWkNum := FT_WOY(CTOD(cDate))        // result: 27

     // last day of year
     nWkNum := FT_WOY(CTOD("12/31/91"))    // result: 53

     For a demonstration of this function, compile and link the
     program WOY.PRG in the Nanforum Toolkit source code.

 Source: WOY.PRG

 Author: Forest Belt, Computer Diagnostic Services, Inc.

 

FT_WORKDAYS

FT_WORKDAYS()
 Return number of work days between two dates

 Syntax

      FT_WORKDAYS( [ <dStart> ], [ <dStop> ] ) -> nDays

 Arguments

     <dStart> is the beginning value for the date range.

     <dStop> is the ending value for the date range.

 Returns

     The number of work days (Monday through Friday) between two dates.

 Description

     FT_WORKDAYS() returns a number indicating the number of work days
     between two dates.  Work days are considered Monday through Friday.
                 (The five day work week none of us Clipper programmers have.)

 Examples

    ? FT_WorkDays( CTOD("5/16/91"), CTOD("5/20/91") ) // 3  (Th - Mo)
    ? FT_WorkDays( CTOD("5/18/91"), CTOD("5/19/91") ) // 0  (Sa - Su)
    ? FT_WorkDays( CTOD("5/17/91"), CTOD("5/17/91") ) // 1  (Fr - Fr)

 Source: WORKDAYS.PRG

 Author: John F. Kaster