British Columbia time zone bug affecting iOS Calendar

First reported on r/ios on June 25, 2026.

If you have all-day events in your Apple Calendar on iOS, they might now span two days after November 1st due to British Columbia switching to permanent Daylight Saving Time. This issue only affects some events, not all of them.

What it looks like

  • calendar events spanning two days
  • time zone bug

How to fix it

  1. Open the Calendar app on your iOS device.
  2. Check your all-day events to see if any are spanning two days.
  3. If an event is spanning two days, try editing the event to adjust the date or time.
  4. Check the time zone settings in your Calendar app to ensure it is set correctly.
  5. If the issue persists, consider reaching out to Apple support for further assistance.

Affected products

  • iOS

Sources

Search terms covered: ios calendar bug, time zone issue