Newest functions Upload a function Leave a tip My account

There are 2,577 functions in this library.

CalendarDiff ( thedate ; gregorian )

Returns the number of days between a the Julian Calendar for a given date and the Gregorian Calendar

  Average rating: 4.0 (37 votes) Log in to vote

Theo Ros - Show more from this author

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/* ---------------------------------------------------------------------------------------------------- Returns the number of days between a the Julian Calendar for a given date and the Gregorian Calendar In: thedate - a datefield in either Julian or Gregorian Calendar gregorian - True (1) if the given date is in the Gregorian Calendar False (0) if the given date is in the Julian Calendar Return type: Number To switch between calendars, use this like: myJulianDate = myJulianDate + CalendarDiff ( GregorianDatefield ; 1 ) myGregorianDate = myGregorianDate + CalendarDiff ( JulianDateField ; 0 ) p.s. on Julian dates, do not expect Filemaker to return the DayOfWeek correctly. Theo Ros ----------------------------------------------------------------------------------------------------*/ Let ( [ y = Year ( thedate ) ; m = Month ( thedate ) ; n = Floor ( 3 * Floor ( ( y + 100 - Floor ( ( 14 - m ) / 12 ) ) / 100 ) / 4 ) - 2 ] ; If ( gregorian = 0 ; n ; -n ) ) Click to copy

Returns the number of days between a the Julian Calendar for a given date
and the Gregorian Calendar

In: thedate - a datefield in either Julian or Gregorian Calendar
gregorian - True (1) if the given date is in the Gregorian Calendar
False (0) if the given date is in the Julian Calendar

Return type: Number

To switch between calendars, use this like:
myJulianDate = myJulianDate + CalendarDiff ( GregorianDatefield ; 1 )
myGregorianDate = myGregorianDate + CalendarDiff ( JulianDateField ; 0 )

p.s. on Julian dates, do not expect Filemaker to return the DayOfWeek correctly.

 

Comments

Log in to post comments.

 

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

Support this website.

This library has been a free commmunity resource for FileMaker users and developers for 21 years. It receives no funding and has no advertisements. If it has helped you out, I'd really appreciate it if you could contribute whatever you think it's worth: