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Mozilla Thunderbird not matching time format of the OS

Eugene Denisov
Eugene Denisov
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I'm running Thunderbird 140.0.1 (64-bit) on Windows 10. The problem is Thunderbird is showing wrong format. My system's sets are: Short date: dd.MM.yyyy Long date: dd MMMM yyyy 'г.' Short time: HH:mm Long time: HH:mm:ss

Thunderbird's language is set to English (US). And it shows times as: 1:00 AM, 2:00 PM etc. Tried to change it to en_GB, did nothing at all. Changing it to ru_RU affects the time format, but interface goes Russian which is unwanted.

Please help to fix it. It's crucial for me to have 24h format as otherwise I cannot use mail/calendar because it's misleading.

I'm running Thunderbird 140.0.1 (64-bit) on Windows 10. The problem is Thunderbird is showing wrong format. My system's sets are: Short date: dd.MM.yyyy Long date: dd MMMM yyyy 'г.' Short time: HH:mm Long time: HH:mm:ss Thunderbird's language is set to English (US). And it shows times as: 1:00 AM, 2:00 PM etc. Tried to change it to en_GB, did nothing at all. Changing it to ru_RU affects the time format, but interface goes Russian which is unwanted. Please help to fix it. It's crucial for me to have 24h format as otherwise I cannot use mail/calendar because it's misleading.
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Chosen solution

No worries, I've found the answer, it's done through adding intl.date_time.pattern_override.date_short and intl.date_time.pattern_override.time_short string preferences, which shall override any other formats.

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Eugene Denisov
Eugene Denisov Question owner
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Chosen Solution

No worries, I've found the answer, it's done through adding intl.date_time.pattern_override.date_short and intl.date_time.pattern_override.time_short string preferences, which shall override any other formats.

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