Time zone is really necessary?

Time zone is really necessary? I am going to build a docker file but it freeze here.

```
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
Configuring tzdata
------------------

Please select the geographic area in which you live. Subsequent configuration
questions will narrow this down by presenting a list of cities, representing
the time zones in which they are located.

1. Africa 4. Australia 7. Atlantic 10. Pacific 13. Etc
2. America 5. Arctic 8. Europe 11. SystemV
3. Antarctica 6. Asia 9. Indian 12. US
Geographic area: Asia

6
Tokyo
^C

```
Why you make it difficulties here? if it is necessary please give better documentation, How can I write your command for different region!!!!