This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Cannot change Thunderbird Lightning to use 12 hour calendar format

more options

I am using Fedora Linux, KDE desktop. The Thunderbird calendar page shows all times on a 24 hour clock. I need this to be in a 12 hour AM/PM format.

I've tried exporting LC_TIME="en_US.utf-8" and LC_ALL="en_US.utf-8" but that doesn't make a difference.

The clock in my task bar does show 12 hour AM/PM format, so my desktop, in general, has the correct format, but the Thunderbird calendar appears to be ignoring that setting.

How can I force Thunderbird calendar to use a 12 hour AM/PM format?

I am using Fedora Linux, KDE desktop. The Thunderbird calendar page shows all times on a 24 hour clock. I need this to be in a 12 hour AM/PM format. I've tried exporting LC_TIME="en_US.utf-8" and LC_ALL="en_US.utf-8" but that doesn't make a difference. The clock in my task bar does show 12 hour AM/PM format, so my desktop, in general, has the correct format, but the Thunderbird calendar appears to be ignoring that setting. How can I force Thunderbird calendar to use a 12 hour AM/PM format?

Gekose oplossing

I found a workaround. I shut down thunderbird, then edited my prefs.js and added two lines:

user_pref("intl.date_time.pattern_override.time_medium", "hh:mm:ss a"); user_pref("intl.date_time.pattern_override.time_short", "hh:mm a");

When I restarted thunderbird it was using a 12 hour format.

Lees dié antwoord in konteks 👍 1

All Replies (1)

more options

Gekose oplossing

I found a workaround. I shut down thunderbird, then edited my prefs.js and added two lines:

user_pref("intl.date_time.pattern_override.time_medium", "hh:mm:ss a"); user_pref("intl.date_time.pattern_override.time_short", "hh:mm a");

When I restarted thunderbird it was using a 12 hour format.