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date-fns / tz

date-fns timezone utils
MIT License
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Node and Chrome output different results #28

Open oaleynik opened 1 week ago

oaleynik commented 1 week ago

Hi there 👋🏻

First of all - thanks for bringing timezones support to date-fns 🙌🏻

I'm pretty sure I missed something. However, I can't get these to work in Chrome.

// CHROME
fromUnixTime(1732204800, { in: tz('America/Denver') }).toString()
// 'Thu Nov 21 2024 18:00:00 GMT+0200 (Eastern European Standard Time)'
new TZDate(1732204800000, 'America/Denver').toString()
// 'Thu Nov 21 2024 09:00:00 GMT-0700 (Mountain Standard Time)'
format(fromUnixTime(1732204800, { in: tz('America/Denver') }), 'MM/dd/yyyy h:mm a z')
// '11/21/2024 6:00 PM GMT+2'
format(new TZDate(1732204800000, 'America/Denver'), 'MM/dd/yyyy h:mm a z')
// '11/21/2024 6:00 PM GMT+2'

Node has it as I would naturally expect:

// NODE
fromUnixTime(1732204800, { in: tz('America/Denver') }).toString()
// Thu Nov 21 2024 09:00:00 GMT-0700 (Mountain Standard Time)
new TZDate(1732204800000, 'America/Denver').toString()
// Thu Nov 21 2024 09:00:00 GMT-0700 (Mountain Standard Time)
format(fromUnixTime(1732204800, { in: tz('America/Denver') }), 'MM/dd/yyyy h:mm a z')
// 11/21/2024 9:00 AM GMT-7
format(new TZDate(1732204800000, 'America/Denver'), 'MM/dd/yyyy h:mm a z')
// 11/21/2024 9:00 AM GMT-7

Are my expectations wrong? I would expect Chrome's output to match the node's output. Thanks in advance for any hints 🙏🏻

Browser: Chrome, 5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Node: v23.1.0 date-fns: 4.1.0 @date-fns/tz: 1.2.0