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  1. Moodle
  2. MDL-17672

Incorrect time shift for recurring events over Daylight Savings Time -> Standard Time change

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Deferred
    • Affects Version/s: 1.9.3, 1.9.10, 2.0.1, 2.4.4
    • Fix Version/s: None
    • Component/s: Calendar, Libraries
    • Labels:
    • Environment:
      Linux
    • Database:
      MySQL
    • Difficulty:
      Difficult
    • Affected Branches:
      MOODLE_19_STABLE, MOODLE_20_STABLE, MOODLE_24_STABLE
    • Epic Link:

      Description

      Recurring events set up under Daylight Savings Time are incorrectly shifted forwards an hour after the change to Standard Time.

      E.g. Set up a weekly event at 1PM today (Dec 16; during DST). After the shift to Standard Time, the event will show as its time 2PM, but should still show 1PM.

        Attachments

          Issue Links

          has a non-specific relationship to

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-66168 Activity start date and due date adds/subtracts 1 hr on backup and restore over DST -> Standard Time change

          • Minor - Minor loss of function where workaround is possible
          • Reopened

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-42079 Repeating events in external calendar do not appear in Moodle Calendar

          • Major - Major loss of function, incorrect output
          • Closed
          has been marked as being related by

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-44680 Moodle calculates DST shift early in some cases

          • Major - Major loss of function, incorrect output
          • Closed

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-57658 Calendar unit tests do not run and are failing (again!)

          • Major - Major loss of function, incorrect output
          • Closed
          will be (partly) resolved by

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-26391 Remove 'Server default' option in the Moodle settings

          • Blocker - Blocks development and/or testing, prevents Moodle from running (applicable to bugs only)
          • Closed
          will help resolve

          Bug - A problem which impairs or prevents Moodle from functioning correctly. CONTRIB-3555 Changes in timezone throw off scheduled appointments by one hour

          • Minor - Minor loss of function where workaround is possible
          • Closed

            Activity

              People

              Assignee:
              moodle.com moodle.com
              Reporter:
              mwebster Mark van Hoek
              Participants:
              Component watchers:
              Andrew Lyons, Dongsheng Cai, Huong Nguyen, Jun Pataleta, Michael Hawkins, Shamim Rezaie, Simey Lameze, Amaia Anabitarte, Carlos Escobedo, Ferran Recio, Ilya Tregubov, Sara Arjona (@sarjona)
              Votes:
              28 Vote for this issue
              Watchers:
              26 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: