(Objective-C) Date/Time Older-Than N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is older than the current time by N seconds, minutes, hours, or days.

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#import <CkoDateTime.h>

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

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

// Subtract 10 minutes, making the date 10 minutes in the past.
[dt AddSeconds: [NSNumber numberWithInt: -600]];
NSLog(@"%@%@",@"10 minutes ago: ",[dt GetAsTimestamp: YES]);

// Is the date/time older than 10 seconds?
BOOL b = [dt OlderThan: [NSNumber numberWithInt: 10] units: @"seconds"];
NSLog(@"%@%d",@"Older than 10 seconds: ",b);

// Is the date/time older than 5 minutes?
b = [dt OlderThan: [NSNumber numberWithInt: 5] units: @"minutes"];
NSLog(@"%@%d",@"Older than 5 minutes: ",b);

// Is the date/time older than 15 minutes?
b = [dt OlderThan: [NSNumber numberWithInt: 15] units: @"minutes"];
NSLog(@"%@%d",@"Older than 15 minutes: ",b);

// Is the date/time older than 1 hour?
b = [dt OlderThan: [NSNumber numberWithInt: 1] units: @"hour"];
NSLog(@"%@%d",@"Older than 1 hour: ",b);

// Is the date/time older than 1 day?
b = [dt OlderThan: [NSNumber numberWithInt: 1] units: @"day"];
NSLog(@"%@%d",@"Older than 1 day: ",b);

// Output:

// 	Now: 2017-05-05T23:33:06-0500
// 	10 minutes ago: 2017-05-05T23:23:06-0500
// 	Older than 10 seconds: True
// 	Older than 5 minutes: True
// 	Older than 15 minutes: False
// 	Older than 1 hour: False
// 	Older than 1 day: False