Objective-C

Date/Time Expires Within N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is within N seconds, minutes, hours, or days of the current system time. Objective-C

#import <CkoDateTime.h>

CkoDateTime *dt = [[CkoDateTime alloc] init];

//  Set to the current system date/time.
[dt SetFromCurrentSystemTime];
NSLog(@"%@%@",@"Now: ",[dt GetAsTimestamp: YES]);

//  Add 10 minutes, making the date 10 minutes in the future.
[dt AddSeconds: [NSNumber numberWithInt: 600]];
NSLog(@"%@%@",@"10 minutes from now: ",[dt GetAsTimestamp: YES]);

//  Is the date/time within 10 seconds of expiration (i.e. within 10 seconds of now)?
BOOL b = [dt ExpiresWithin: [NSNumber numberWithInt: 10] units: @"seconds"];
NSLog(@"%@%d",@"Expires within 10 seconds: ",b);

//  Does the date/time expire within 5 minutes?
b = [dt ExpiresWithin: [NSNumber numberWithInt: 5] units: @"minutes"];
NSLog(@"%@%d",@"Expires within 5 minutes: ",b);

//  Does the date/time expire within 15 minutes?
b = [dt ExpiresWithin: [NSNumber numberWithInt: 15] units: @"minutes"];
NSLog(@"%@%d",@"Expires within 15 minutes: ",b);

//  Does the date/time expire within 1 hour?
b = [dt ExpiresWithin: [NSNumber numberWithInt: 1] units: @"hour"];
NSLog(@"%@%d",@"Expires within 1 hour: ",b);

//  Does the date/time expire within 1 day?
b = [dt ExpiresWithin: [NSNumber numberWithInt: 1] units: @"day"];
NSLog(@"%@%d",@"Expires within 1 day: ",b);

//  Output:

//  	Now: 2017-05-05T23:48:00-0500
//  	10 minutes from now: 2017-05-05T23:58:00-0500
//  	Expires within 10 seconds: False
//  	Expires within 5 minutes: False
//  	Expires within 15 minutes: True
//  	Expires within 1 hour: True
//  	Expires within 1 day: True