Custom dateFormat like "dd-mm-yyyy" doesn't work properly if device follows japanese/buddhist calendar

The format strings are designed for the Gregorian calendar. If this is meant to be shown to the user, you should an appropriate localized format.

Expanding on jlilest’s answer a bit…

This post explains the three recommended ways to use DateFormatter. Please try out the one that best suits your needs. If you follow-up questions, reply back here with the details and I’ll take a look.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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Formats containing specific fields, by passing those fields to DateFormatter.dateFormat(fromTemplate:options:locale:) and then applying the resulting string to the dateFormat property of your date formatter

above method works But i set "dd-mm-yy" or "dd.mm.yy" in template but it return "dd/mm/yy" format String

Right. When you apply a template, it ignores all the ‘punctuation’ and focuses solely on the tokens. This makes sense when working with localised dates.

With reference to the post I mentioned, are you trying to create:

• A localised date?

• Or a fixed-format date?

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—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"