tz method
Implementation
Moment tz(String locationName, [force = false]) {
final location = getLocation(locationName);
if (force) {
Duration offset = dateTime.timeZoneOffset;
if (offset != Duration.zero) {
dateTime = dateTime.add(offset).toUtc();
}
TZDateTime tzDateTime = TZDateTime.from(dateTime, location);
Duration timeZoneOffset = tzDateTime.timeZoneOffset;
dateTime = tzDateTime.subtract(timeZoneOffset);
} else {
TZDateTime tzDateTime = TZDateTime.from(dateTime, location);
dateTime = tzDateTime;
}
return this;
}