Change Timezone in Debian
If you’re in a new timezone (e.g. in Tanzania )and you configured originally your laptop for another timezone, it’s easy to change that in Debian:
Execute the following command as root
dpkg-reconfigure tzdata
Then select your continent and the capital city of your country where you’re staying at the moment.
After that the new timezone will be set and your clock gets adjusted.
Detail:
For Tanzania you have to choose Dar es Salaam, this isn’t the capital city, which Dodoma is, but it’s the de facto capital and biggest city.
