GSAK (Geocaching Swiss Army Knife)
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DateDiff (function)

DateDiff(dDate1,dDate2) : Number

Calculates the number of days between two dates. If result is 0 then they are the same Date, if result is negative then Date2 occurs before Date1. Today and yesterday are 1 day apart.

Example: Calculate the number of days between 1st January, 2013 and 31st August 2013:
 

$diff = DateDiff([20130101],[20130831])
msgok msg=$diff

 
 

Related: StringToDate() DateFormat() DateToString() DateToSql()

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