millisecondsSinceUnixEpochAt

(iosArm64, iosX64, jvm, macosX64) fun millisecondsSinceUnixEpochAt(offset: UtcOffset): LongMilliseconds

Get the number of milliseconds relative to the Unix epoch of 1970-01-01T00:00Z.

ArithmeticException - if the number of milliseconds can't be expressed without overflow