isUtc property Null safety
True if this DateTime is set to UTC time.
Returns null if this is null
final dDay = DateTime.utc(1944, 6, 6);
print(dDay.isUtc); // true
final local = DateTime(1944, 6, 6);
print(local.isUtc); // false
Implementation
bool? get isUtc => _value?.isUtc;