Applies ToOutlook for Microsoft 365 Outlook 2024 Outlook 2021 Outlook 2019 Outlook 2016 New Outlook for Windows

In Outlook, week numbers can appear in the calendar month view and on the Date Navigator in the folder pane. Week numbers restart at the beginning of each year. By default, week numbers are turned off.

Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?

Note: If the steps under this New Outlook tab don't work, you may not be using new Outlook for Windows yet. Select Classic Outlook and follow those steps instead.

To turn on and view week numbers in new Outlook:

  1. In the calendar, on the View tab, select Calendar settings.

  2. Select Calendar > View.

  3. Under Calendar appearance, select Show week numbers, then select Save.

To view the week numbers, open your calendar, and on the ribbon select Month. On the left margin of the calendar, you'll see numerals representing the week numbers.

To turn on and view week numbers in classic Outlook:

  1. Select the File tab.

  2. Select Options.

  3. Select Calendar.

  4. Under Display options, select or clear the Show week numbers in the month view and in the Date Navigator check box.

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