toDateTime method
Implementation
@override
DateTime toDateTime({TimeStamp? filler, bool keepLocal = false}) {
filler ??= TimeStamp.now();
if (_local) return DateTime(filler.day.year, filler.day.month, filler.day.day, hour, minute);
var utcTime = DateTime.utc(filler.day.year, filler.day.month, filler.day.day, hour, minute);
return utcTime;
}