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kotlinlang

Hi, Anybody knows how to get millisecond at any time I want(not current time), for example, if I wanna transform `2023-01-01` to milliseconds, what should I do?  is there something like `Date(2023,1,1).getMillisecond()`  ?

<https://github.com/Kotlin/kotlinx-datetime|Kotlinx datetime> should be able to get you what you need.

If you’re only targeting JVM, you can use Java’s <https://docs.oracle.com/javase/8/docs/api/java/time/LocalDate.html|LocalDate> API directly (Kotlinx datetime is basically a wrapper over this API, with backports for non-JVM targets). You can also use the standard Java `LocalDate` APIs on Android, but you’ll need to enable <https://developer.android.com/studio/write/java8-support|desugaring>

Hi, thanks a lot , finally I got a solution like
``` val startTime = LocalDateTime.of(2023, 1, 1, 0, 0, 0).toEpochSecond(ZoneOffset.of("+08:00"))```
which is inspired by your advice. You made my day!