This is a more involving method and it’s a bit of a hack but nevertheless, it is an alternate option that you can use to change the time zone on Ubuntu.įirst, rename the /etc/localtime file to keep it as a backup. You can get a comprehensive time zone list here. The “ America/New_York†portion of the above command without quotes is what was retrieved from the list. $ sudo timedatectl set-timezone "America/New_York" Search for the preferred time zone name from the list then uses one of the following commands to set the new time zone on your system. That way you can know the correct one to pick out.
You can find all the available time zones on your system. Now Let’s Change the Time Zone on Ubuntu 20.04 Option 1 – Using timedatectl The expected output is: Local time: Thu 21:29:05 UTC The same can be achieved but with more detail by running: $ timedatectl The above command shows that this system is running in the UTC timezone. They are usually set using country boundaries or regional boundaries within a country, especially for larger ones. Just to be on the same page, a time zone refers to a designated area of the globe that observes a uniform standard time. However, on systemd systems the symlink approach is always used, and there is a timedatectl set-timezone tool for changing it.Windows Live Email Settings - Tweaking your Window Live Mail Configuration The configuration files are not portable /etc/sysconfig is specific to Red Hat (Debian has /etc/default). This however needs /usr to be mounted very early, which is disliked by graybeards. Other distributions solve this by symlinking the zoneinfo file instead, and reading the symlink's target. Some distributions split the configuration since zoneinfo files themselves don't have the zone name inside, so once the admin copied /usr/share/zoneinfo/Europe/London to /etc/localtime, it is no longer possible to know that it was "Europe/London".įor example, the name is needed when showing the current zone in setup screens, or when updating the localtime file on every boot (it needs to be copied to /etc again every time zoneinfo is updated). export TZ=UTC to temporarily override the system-wide zone). You can also explicitly set them to "UTC" or "Etc/UTC" if you want (e.g. Userspace works with UTC-based "epoch" timestamps, but reads /etc/localtime or the $TZ environment variable when displaying the dates. By default, it expects to read UTC time from the hardware clock (RTC), but allows the boot process to specify the correct "local time" offset, as most PCs keep local time in the RTC. The kernel clock always runs on UTC (or at least what it thinks is UTC). There is no hardcoded zone information as it could very quickly become incorrect/obsolete. The default timezone is no timezone, that is, UTC time.
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