When the region in Thailand, the date calculate incorrect

[PacoPacoPakitor]

For example, if their date is "2022-02-27T16:00:00.000Z", after will covert to "1479-02-27 16:00:00.000". It's should not be reduced with 543 years, It's should be plus with 543years. Can you help to check this? Thx

[vuptt]

You're using Buddhist calendar on the iPhone. Here is the detail about this https://forums.swift.org/t/checking-the-local-season/40796/3