NSDate+Comparison - adios NSOrdered*

NSDate+Comparison.h

//
//  NSDate+Comparison.h
//
//  Created by Joshua May on 4/11/11.
//  Copyright (c) 2011 Joshua May. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSDate (Comparison)

- (BOOL)isBeforeDate:(NSDate *)date;
- (BOOL)isAfterDate:(NSDate *)date;
- (BOOL)isSameAsDate:(NSDate *)date;

@end

NSDate+Comparison.m

//
//  NSDate+Comparison.m
//
//  Created by Joshua May on 4/11/11.
//  Copyright (c) 2011 Joshua May. All rights reserved.
//

#import "NSDate+Comparison.h"

@implementation NSDate (Comparison)

- (BOOL)isBeforeDate:(NSDate *)date {
    return (NSOrderedAscending == [self compare:date]);
}

- (BOOL)isAfterDate:(NSDate *)date {
    return (NSOrderedDescending == [self compare:date]);
}

- (BOOL)isSameAsDate:(NSDate *)date {
    return (NSOrderedSame == [self compare:date]);
}

@end

You're missing two methods. :-)

- (BOOL)isBeforeOrSameAsDate:(NSDate *)date;
- (BOOL)isAfterOrSameAsDate:(NSDate *)date;

• (BOOL)isSafeForDeLoreanTimeJump;