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Incorrect date displays on using addDays() after daylight saving



Incorrect date displays when using the @addDays() function after daylight saving.

Error Messages

Not Applicable

Steps to Reproduce

Perform a property set and use the below function.

param.reportdate = @(Pega-RULES:BusinessCalendar).addDays(@(Pega-RULES:DateTime).getCurrentDateStamp(), -1, false, "")

Root Cause

A defect in user application code or rules.

The two types of addDays() function are,
  • @(Pega-RULES:BusinessCalendar).addDays(String, int, boolean, String)
  • @(Pega-RULES:BusinessCalendar).addDays(String, int, boolean, String, String)
Both these functions use the Java Calendar object to add the number of days. The first method does not incorporate the timezone when creating a Calender object. The second method incorporates the timezone (last parameter).


Perform the following local-change: 

Use addDays with five arguments, that is with the timezone argument,

For example: @(Pega-RULES:BusinessCalendar).addDays(.PropE, 7, false, UKDefault,"Europe/London")


Published December 4, 2018 - Updated October 8, 2020

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