We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How do I change the time format from 24-hour format to 12-hour format, so that, for instance, the time shows as 1:00 pm instead of 13:00?

  • 1 reply
  • 6 have this problem
  • 1 view
  • Last reply by Tonnes

more options

How do I change the time format from 24-hour format to 12-hour format, so that, for instance, the time shows as 1:00 pm instead of 13:00 in the Calendar for Thunderbird?

How do I change the time format from 24-hour format to 12-hour format, so that, for instance, the time shows as 1:00 pm instead of 13:00 in the Calendar for Thunderbird?

All Replies (1)

more options

You’ll need to set it for your OS, since Lightning uses the OS’s time format.

See here. Also see this and this question.