JIRA Invalid Date or Time Displayed Within 'Work Log' in Activity Panel of Issue

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In JIRA when reviewing the Activity panel for an issue with logged time an invalid date is displayed:


JIRA Cloud 'Look and Feel' allows customization of 'Date/Time Formats'.  There are additional configuration items available for JIRA installed: Invalid date when trying to Log Work on Issue in JIRA  


  • Cog icon > System - User Interface > Look and Feel
  • Bottom of the page has 'Date/Time Formats'
  • Select 'Revert' to restore the previous settings or
  • Edit the settings to match the Simple Date Link

    (info) info is good

Last modified on Feb 26, 2016

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