How to Compare Dates in Objective C ?

when we have our NSDate object and we can compare it to another NSDate and get an NSTimeInterval which is the difference in seconds.
​I think we can use  a category to evaluate some results.
In order to compare two dates please follow the below steps:

#import <Foundation/Foundation.h>

​@interface NSDate (Compare) 

-(BOOL) isLaterThanOrEqualTo:(NSDate*)date; -(BOOL) isEarlierThanOrEqualTo:(NSDate*)date; -(BOOL) isLaterThan:(NSDate*)date; -(BOOL) isEarlierThan:(NSDate*)date; 
​
 @end

#import "NSDate+Compare.h" 

@implementation NSDate (Compare) 
-(BOOL) isLaterThanOrEqualTo:(NSDate*)date { return !([self compare:date] == NSOrderedAscending); } 
-(BOOL) isEarlierThanOrEqualTo:(NSDate*)date { return !
([self compare:date] == NSOrderedDescending); 
}​
-(BOOL) isLaterThan:(NSDate*)date { 
return ([self compare:date] == NSOrderedDescending); 
}
-(BOOL) isEarlierThan:(NSDate*)date { 
return ([self compare:date] == NSOrderedAscending); 
} 
@end

Read:
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