How to convert date string to timestamp in Kotlin?

问题

I want to convert a date string to unix timestamp from a date string e.g. 14-02-2018

Can someone help?

回答1:

Since JDK 8 you can do:

val l = LocalDate.parse("14-02-2018", DateTimeFormatter.ofPattern("dd-MM-yyyy"))

val unix = l.atStartOfDay(ZoneId.systemDefault()).toInstant().epochSecond

Note that the example uses your system's default timezone.

回答2:

use this to convert the date string to UNIX timestamp

val date = SimpleDateFormat("dd-MM-yyyy").parse("14-02-2018")
println(date.time)

来源：https://stackoverflow.com/questions/48838992/how-to-convert-date-string-to-timestamp-in-kotlin