isDaylightSavingTime method
Indicates whether or not this ZonedDateTime is in daylight saving time for its time zone. This is determined by checking the ZoneInterval.savings property of the zone interval containing this value.
see: getZoneInterval
true
if the zone interval containing this value has a non-zero savings
component; false
otherwise.
Implementation
bool isDaylightSavingTime() => getZoneInterval().savings != Offset.zero;