Week numbers in macOS Calendar
To enable or display the ISO 8601 week number in macOS Calendar, you typically need to adjust the view settings:
Calendar > Settings > Advanced > Check "Show week numbers"
* Ensure your system or application regional settings are set to follow ISO 8601 standards (weeks start on Monday) if the output varies.
Instructions étape par étape
- Open the Calendar app on your Mac.
- In the menu bar choose Calendar > Settings (or Preferences on older macOS).
- Open the Advanced tab.
- Tick "Show week numbers": they appear along the left side of month view.
Bon à savoir
macOS follows ISO 8601 numbering when the system region uses a Monday week start. You can change the week start under System Settings > General > Language & Region.