Fast date formatting.

NSString+DateFormatter.h

//
//  NSString+DateFormatter.h
//
//  Created by Maksym Huk on 3/31/13.
//  Copyright (c) 2013 Maksym Huk. All rights reserved.
//

#import <Foundation/Foundation.h>

#define DateFormatDate @"yyyy-MM-dd"
#define DateFormatTime @"HH:mm:ss"

@interface NSString (DateFormatter)

+ (NSString *)stringFromDate:(NSDate *)date dateFormat:(NSString *)dateFormat;
+ (NSString *)stringFromDate:(NSDate *)date dateFormat:(NSString *)dateFormat locale:(NSLocale *)locale;

@end

NSString+DateFormatter.m

//
//  NSString+DateFormatter.m
//
//  Created by Maksym Huk on 3/31/13.
//  Copyright (c) 2013 Maksym Huk. All rights reserved.
//

#import "NSString+DateFormatter.h"

@implementation NSString (DateFormatter)

+ (NSString *)stringFromDate:(NSDate *)date dateFormat:(NSString *)dateFormat
{
    return [self stringFromDate:date dateFormat:dateFormat locale:nil];
}

+ (NSString *)stringFromDate:(NSDate *)date dateFormat:(NSString *)dateFormat locale:(NSLocale *)locale
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    dateFormatter.locale = locale;
    dateFormatter.dateFormat = dateFormat;
    return [dateFormatter stringFromDate:date];
}

@end