macOS defaults

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Clear recently used time zones in Calendar ​

Clear all recently used time zones from the time zone selector in Calendar when time zone support is enabled (Calendar → Settings → Advanced → Turn on time zone support).

  • Tested on macOS:
    • Sequoia
  • Parameter type: N/A

Read current value ​

bash
defaults read com.apple.iCal "RecentlyUsedTimeZones"

Reset to default value ​

Clear recently used time zones.

bash
defaults delete com.apple.iCal "RecentlyUsedTimeZones"