NSDateFormat

NSDate+DateFormat.m

-(NSMutableDictionary*)dateDictionary
{
    NSCalendar * chineseCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSUInteger unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit |
    NSSecondCalendarUnit | NSDayCalendarUnit  |
    NSMonthCalendarUnit | NSYearCalendarUnit;
    
    NSDateComponents * cps = [chineseCalendar components:unitFlags fromDate:self];
    NSUInteger hour = [cps hour];
    NSUInteger minute = [cps minute];
    NSUInteger second = [cps second];
    NSUInteger day = [cps day];
    NSUInteger month = [cps month];
    NSUInteger year = [cps year];
    
    NSMutableDictionary* dic = [[NSMutableDictionary alloc] init];
    [dic setObject:[NSNumber numberWithInteger:hour] forKey:@"hour"];
    [dic setObject:[NSNumber numberWithInteger:minute] forKey:@"minute"];
    [dic setObject:[NSNumber numberWithInteger:second] forKey:@"second"];
    [dic setObject:[NSNumber numberWithInteger:day] forKey:@"day"];
    [dic setObject:[NSNumber numberWithInteger:month] forKey:@"month"];
    [dic setObject:[NSNumber numberWithInteger:year] forKey:@"year"];
    
    
    return dic;
}

- (NSString *)displayDateTime
{
    NSString *format = @"";
    NSDateFormatter *df=[[NSDateFormatter alloc] init];
    
    NSTimeZone* localzone = [NSTimeZone localTimeZone];
    NSTimeZone* GMTzone = [NSTimeZone timeZoneForSecondsFromGMT:0];
    [df setTimeZone:localzone];
    
    [df setDateFormat:@"yyyy-MM-dd HH:mm"];
    format=[df stringFromDate:self];
    return format;
}