Brian Dunning's FileMaker Custom Functions

IsDaylightSavings ( TS )

Determines if a given timestamp is with Daylight Savings Time

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Yvonne Dutreaux   Yvonne Dutreaux
Cordblood Registry

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  Sample input:
IsDaylightSavings ( 4/8/2009 6:00 AM )
  Sample output:

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

Determines if a given timestamp falls within daylight savings time

Requires DaylightSavingsBegins and DaylightSavingsEnds custom functions



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

Under construction. Email me your wish list for improvements.