NSString *strSrcDate=@"2016年2月1日"; NSTimeZone *timeZone=[NSTimeZone timeZoneWithAbbreviation:@"GMT"]; NSDateFormatter *fmt=[[NSDateFormatter alloc]init]; fmt.dateFormat = @"yyyy年MM月dd日"; fmt.timeZone = timeZone; NSDateFormatter *dstFmt=[[NSDateFormatter alloc]init]; dstFmt.dateFormat = @"yyyy-MM-dd"; dstFmt.timeZone = timeZone; NSDate *srcDate=[fmt dateFromString:strSrcDate]; NSLog(@"date converted from %@ to %@",strSrcDate,[dstFmt stringFromDate:srcDate]);