Odd question:

Which (large) countries uses/prefers 12-hour time format (AM/PM)?

I understand that US, UK, Canada, Australia mostly use 12-hour (though also 24-hour in some cases).

But there must be a great deal more, even though 24-hour format is dominant. Can't find any list.

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    This question appears to be off-topic because it isn't about a problem or question relating to travelling – Gagravarr Aug 7 '14 at 21:54
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    @Gagravarr I kinda see it. But if I remove "It's for a website", then it could easily be about travelling. Can you tell me where I could ask such a question then? – mowgli Aug 7 '14 at 22:14
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    Whether it's for a web site or not, it's not about travel. – Flimzy Aug 7 '14 at 22:28
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    Knowing what time standard is used in different countries seems very relevant to travel. – Matthew Nichols Feb 17 '17 at 17:51

A quite a good resource is imho the standard clock setting in Microsoft Windows installations: enter image description here image from talkstandards.com

As you can see, it's particularly North America, India, the Philippines, Colombia, Egypt, Saudi Arabia, and Australia

This is more or less confirmed by Wikipedia that states that

in most English-speaking regions, particularly the United States, the Philippines and the United Kingdom and its former colonies, the 12-hour clock is the predominant form of stating the time.

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    Done. Country codes for countries mostly using 12-hour format: US, UK, PH, CA, AU, NZ, IN, EG, SA, CO, PK, MY – mowgli Aug 8 '14 at 9:26
  • This is incorrect. The default clock settings in Vietnamese locale in Windows is still 12-hour format. People also commonly use 12-hour format although official documents must be in 24-hour format – phuclv Aug 31 '15 at 10:20
  • SG (Singapore) is missing in the above list @mowgli – PaulT Jul 3 '17 at 12:41
  • Furthermore ZA (South Africa) is not highlighted in the image, but my research shows they normally use the 12 hour clock as well. – PaulT Jul 3 '17 at 13:10

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