# Is it possible to switch to 24 hours (instead of AM and PM) ?

**URL:** <https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853>\
**Category:** About This Message Board\
**Created:** [January 14, 2015, 10:38pm UTC](https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853 "2015-01-14T22:38:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Scandic](https://avatars.discourse-cdn.com/v4/letter/s/ecb155/32.png) [@Scandic](https://boards.straightdope.com/u/Scandic)\
**Post date:** [January 14, 2015, 10:38pm UTC](https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853/1 "2015-01-14T22:38:36Z")

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I’ve looked inside the User Control Panel but didn’t find such options. This is perhaps not possible to change?

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**Author:** ![DingoelGringo](https://avatars.discourse-cdn.com/v4/letter/d/9d8465/32.png) [@DingoelGringo](https://boards.straightdope.com/u/DingoelGringo)\
**Post date:** [January 14, 2015, 10:40pm UTC](https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853/2 "2015-01-14T22:40:55Z")

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> [@Scandic](#):
>
> I’ve looked inside the User Control Panel but didn’t find such options. This is perhaps not possible to change?

Switch what?

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**Author:** ![running\_coach](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/running_coach/32/15836_2.png) [@running\_coach](https://boards.straightdope.com/u/running_coach)\
**Post date:** [January 14, 2015, 10:43pm UTC](https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853/3 "2015-01-14T22:43:09Z")

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> [@DingoelGringo](#):
>
> Switch what?

The time stamps on the posts.

Doesn’t look like it’s possible.

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**Author:** ![Siam\_Sam](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@Siam\_Sam](https://boards.straightdope.com/u/Siam_Sam)\
**Post date:** [January 15, 2015, 12:12am UTC](https://boards.straightdope.com/t/is-it-possible-to-switch-to-24-hours-instead-of-am-and-pm/709853/4 "2015-01-15T00:12:15Z")

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Thailand largely uses the 24-hour clock but doesn’t quite get it. You often see times listed as something like 20:00pm. What, as opposed to 20:00am?