NSDate NSTimerZone 时区转换

timeZoneAbbreviation = @“America/New_York”；

#pragma mark - 转换时区

- (NSDate *) convertDate:(NSDate *) date toTimeZone:(NSString *) timeZoneAbbreviation {

if (!date) {

return nil;

}

NSTimeZone *locationZone  = [NSTimeZonesystemTimeZone];

NSTimeZone *zoneUTC     =   [NSTimeZone timeZoneWithName:timeZoneAbbreviation];

NSTimeInterval s        = [zoneUTC secondsFromGMTForDate:date];

NSTimeInterval p        = [locationZone secondsFromGMTForDate:date];

NSTimeInterval i = s-p;

NSDate *d = [NSDatedateWithTimeInterval:i sinceDate:date];

return d;

}