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switch calendar fromat from 24 hr to 12 hr

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When I switched from windows 8.1 to windows 10 Thunderbird switched the time format from 12 hr to 24 hr. How do I switch back to the 12 hr format?

When I switched from windows 8.1 to windows 10 Thunderbird switched the time format from 12 hr to 24 hr. How do I switch back to the 12 hr format?

Chosen solution

If my understanding is correct Lightning uses your operating system default time format. So I assume you need to change windows 10s default to 12hour from 24 hour.

I tried locating information on the Microsoft site, but it was just not helpful. so see about half way down this page http://www.sysprobs.com/change-date-format-windows-7-ddmmyyyy

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Chosen Solution

If my understanding is correct Lightning uses your operating system default time format. So I assume you need to change windows 10s default to 12hour from 24 hour.

I tried locating information on the Microsoft site, but it was just not helpful. so see about half way down this page http://www.sysprobs.com/change-date-format-windows-7-ddmmyyyy