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Support Article

addDays function incorrect for America/Halifax timezone calendar



The addDays function incorrectly considers Friday and Saturday as business days; whereas, the corresponding calendar was configured with Saturday and Sunday as not business days. The issue occurs when the time zone in the calendar rule is the America/Halifax region.

Error Messages

Not Applicable

Steps to Reproduce

  1. Configure a new calendar and set the time zone to America/Halifax region.
  2. Set Saturday and Sunday as not a business day.
  3. Use the BusinessCalendar library function addDays.

Root Cause

A defect in Pegasystems’ code or rules. Using the business calendar's time zone to calculate the dateDiff caused the issue.


Apply HFix-21899.

Published August 26, 2017 - Updated October 8, 2020

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