getZoneOrNull abstract method
Returns the time zone for the given ID, if it's available.
Note that this may return a DateTimeZone
that has a different ID to that requested, if the ID
provided is an alias.
Note also that this method is not required to return the same DateTimeZone
instance for
successive requests for the same ID; however, all instances returned for a given ID must compare
as equal.
The fixed-offset timezones with IDs 'UTC' and "UTC+/-Offset" are always available.
id
: The time zone ID to find.
Implementation
Future<DateTimeZone?> getZoneOrNull(String id);