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.

Can set Timezone in Thunderbird / Lightning Options. Why is this setting only observed by Lightning?

  • 1 antwoord
  • 1 het hierdie probleem
  • 4 views
  • Laaste antwoord deur Toad-Hall

more options

Need to set my sytem clock to UTC for two reasons: 1) Dual booting Windows and Ubuntu - Windows interprets hardware clock as local time, while Linux interprets hardware clock as UTC. To sync a shared file system between the two OSes, everything apparently must be defined as UTC. 2) UTC does not use Daylight Saving Time - this would have caused severe continuity and synchronization problems when monitoring and storing long term time series data.

So, my system (hardware and both OSes, + InFluxDB, Grafana, Python etc.) need to have EVERYTHING defined in UTC, but my real-life friends and contacts, and therefore my calendar and email functions need to operate in Norwegian time (UTC + 1 hour + Daylight Saving).

Was SO pleased to find an Option setting that displays my Lightning calendar in UTC+1+DS, without affecting the OS settings. However, the emails are still displayed with plain UTC. Have not found any separate clock or TimeZone setting for Thunderbird - why does only Lightning, and apparently not Thunderbird, observe the Thunderbird TimeZone Option setting? How could this be resolved?

Need to set my sytem clock to UTC for two reasons: 1) Dual booting Windows and Ubuntu - Windows interprets hardware clock as local time, while Linux interprets hardware clock as UTC. To sync a shared file system between the two OSes, everything apparently must be defined as UTC. 2) UTC does not use Daylight Saving Time - this would have caused severe continuity and synchronization problems when monitoring and storing long term time series data. So, my system (hardware and both OSes, + InFluxDB, Grafana, Python etc.) need to have EVERYTHING defined in UTC, but my real-life friends and contacts, and therefore my calendar and email functions need to operate in Norwegian time (UTC + 1 hour + Daylight Saving). Was SO pleased to find an Option setting that displays my Lightning calendar in UTC+1+DS, without affecting the OS settings. However, the emails are still displayed with plain UTC. Have not found any separate clock or TimeZone setting for Thunderbird - why does only Lightning, and apparently not Thunderbird, observe the Thunderbird TimeZone Option setting? How could this be resolved?

All Replies (1)

more options

Thunderbird uses the OS timezone and clock settings.

Exit Thunderbird.

In Windows 10: In windows search type: date select 'Date & Time settings' Timezone is set in UTC: (UTC+01.00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna

Adjust for daylight saving time automatically - set to 'ON'