How can I validate a local date time within daylight savings time?

Question

Mar 12, 2017 02:39:00 \"America/Chicago\" does not exist. When I set the date and time to this value it does not fail. The time gets set to Mar 12, 2017 0

Answer 1

Here a validation without throwing exceptions. You only need to ask the zone rules if a LocalDateTime is valid within a given timezone:

public static boolean isValid(LocalDateTime ldt, ZoneId zoneId) {
    return !zoneId.getRules().getValidOffsets(ldt).isEmpty();
}