> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/other-pages/platforms/change-time-zone.md).

# Change Time Zone

This article shows how to modify the timezone of a TMG unit.

**Starting from version 2.9, the timezone -must- be configured from the web portal in the services section:** [Set Timezone with Date/Time](/tmedia-documentation/configuration/web-portal-3-3/system.md)

### TMG shell command

```
tbtimezone
```

#### Example

This example explains how to change the TMG timezone the Vietnam timezone.

```
[root@TB006882 x86_64-linux64]# tbtimezone
Please identify a location so that time zone rules can be set correctly.
Please select a continent or ocean.
1) Africa
2) Americas
3) Antarctica
4) Arctic Ocean
5) Asia
6) Atlantic Ocean
7) Australia
8) Europe
9) Indian Ocean
10) Pacific Ocean
11) none - I want to specify the time zone using the Posix TZ format.
```

1. ? 5 Please select a country.
   1. Afghanistan 18) Israel 35) Palestine
   2. Armenia 19) Japan 36) Philippines
   3. Azerbaijan 20) Jordan 37) Qatar
   4. Bahrain 21) Kazakhstan 38) Russia
   5. Bangladesh 22) Korea (North) 39) Saudi Arabia
   6. Bhutan 23) Korea (South) 40) Singapore
   7. Brunei 24) Kuwait 41) Sri Lanka
   8. Cambodia 25) Kyrgyzstan 42) Syria
   9. China 26) Laos 43) Taiwan
   10. Cyprus 27) Lebanon 44) Tajikistan
   11. East Timor 28) Macau 45) Thailand
   12. Georgia 29) Malaysia 46) Turkmenistan
   13. Hong Kong 30) Mongolia 47) United Arab Emirates
   14. India 31) Myanmar (Burma) 48) Uzbekistan
   15. Indonesia 32) Nepal 49) Vietnam
   16. Iran 33) Oman 50) Yemen
   17. Iraq 34) Pakistan
2. ? 13

   The following information has been given:

   Vietnam

   Therefore TZ='Asia/Vietnam' will be used. Local time is now: Mon Jan 24 22:56:39 ICT 2011. Universal Time is now: Mon Jan 24 14:56:39 UTC 2011. Is the above information OK?

   1. Yes
   2. No
3. ? 1 Changes are now applied, please restart Toolpack.

### Restart Toolpack

```
tbtoolpack stop
tbtoolpack start
```


---

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