(Objective-C) DateTime - Add or Subtract Seconds

Demonstrates the AddSeconds method to add or subtract a number of seconds from a date/time.

Note: This example is only valid in Chilkat v9.5.0.65 or later.

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#import <CkoDateTime.h>

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

[dateTime SetFromCurrentSystemTime];

NSLog(@"%@%@",@"Current time: ",[dateTime GetAsTimestamp: NO]);

[dateTime AddSeconds: [NSNumber numberWithInt: 1]];
NSLog(@"%@%@",@"Current time + 1 second: ",[dateTime GetAsTimestamp: NO]);

[dateTime AddSeconds: [NSNumber numberWithInt: -2]];
NSLog(@"%@%@",@"Current time - 1 second: ",[dateTime GetAsTimestamp: NO]);

// Add 30 days (60 * 60 * 24 * 30)
[dateTime AddSeconds: [NSNumber numberWithInt: (60 * 60 * 24 * 30)]];
NSLog(@"%@%@",@"Current time + 30 days: ",[dateTime GetAsTimestamp: NO]);

// Sample output for test run on 2-Dec-2016: 

// 	Current time: 2016-12-02T12:59:13Z
// 	Current time + 1 second: 2016-12-02T12:59:14Z
// 	Current time - 1 second: 2016-12-02T12:59:12Z
// 	Current time + 30 days: 2017-01-01T12:59:12Z