fun millisecondsBetween(start: DateTime, endExclusive: DateTime): LongMilliseconds
Get the number of whole milliseconds between two date-times, assuming they have the same UTC offset. In general, it's more appropriate to calculate duration using Instant or ZonedDateTime as any daylight savings rules won't be taken into account when working with DateTime directly.
ArithmeticException - if the result overflows
fun <T1, T2> millisecondsBetween(start: TimePoint<T1>, endExclusive: TimePoint<T2>): LongMilliseconds
Get the number of whole milliseconds between two time points.