Addition & Subtraction

Year 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addYear().toString(); // 1401/02/21

p.subYear().toString(); // 1400/02/21

You can add or subtract the year with a number.

                
let p = new PersianDate('1400/2/21','jalali');

p.addYear(3).toString(); // 1403/02/21

p.subYear(2).toString(); // 1401/02/21

Month 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addMonth().toString(); // 1400/03/21

p.subMonth().toString(); // 1400/02/21

You can add or subtract the month with a number.

                
let p = new PersianDate('1400/11/21','jalali');

p.addMonth(3).toString(); // 1401/02/21

p.subMonth(2).toString(); // 1399/12/21

Day 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addDay().toString(); // 1400/02/22

p.subDay().toString(); // 1400/02/21

You can add or subtract the day with a number.

                
let p = new PersianDate('1400/2/21','jalali');

p.addDay(15).toString(); // 1400/03/05

p.subDay(10).toString(); // 1401/02/26

Quarter 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addQuarter().toString(); // 1400/05/21

p.subQuarter().toString(); // 1400/02/21

You can add or subtract the quarter with a number.

                
let p = new PersianDate('1400/10/21','jalali');

p.addQuarter(2).toString(); // 1401/04/21

p.subQuarter(1).toString(); // 1401/01/21

Week 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addWeek().toString(); // 1400/02/28

p.subWeek().toString(); // 1400/02/21

You can add or subtract the week with a number.

                
let p = new PersianDate('1400/12/21','jalali');

p.addWeek(5).toString(); // 1401/01/27

p.subWeek(3).toString(); // 1401/01/06

Hour 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addHour().toString('datetime'); // 1400/02/21 01:00

p.subHour().toString('datetime'); // 1400/02/21 00:00

You can add or subtract the hour with a number.

                
let p = new PersianDate('1400/2/21','jalali');

p.addHour(36).toString('datetime'); // 1400/02/22 12:00

p.subHour(18).toString('datetime'); // 1400/02/21 18:00

Minute 1.0.0+

                
let p = new PersianDate('1400/2/21','jalali');

p.addMinute().toString('datetime'); // 1400/02/21 00:01

p.subMinute().toString('datetime'); // 1400/02/21 00:00

You can add or subtract the minute with a number.

                
let p = new PersianDate('1400/2/21','jalali');

p.addMinute(90).toString('datetime'); // 1400/02/21 01:30

p.subMinute(45).toString('datetime'); // 1400/02/21 00:45

Second 1.0.0+

                
let p = new PersianDate('1400/2/1 12:30','jalali');

p.addSecond().toString('datetime:ss'); // 1400/02/01 12:30:01

p.subSecond().toString('datetime:ss'); // 1400/02/01 12:30:00

You can add or subtract the second with a number.

                
let p = new PersianDate('1400/2/1 12:30','jalali');

p.addSecond(130).toString('datetime:ss'); // 1400/02/01 12:32:10

p.subSecond(20).toString('datetime:ss');  // 1400/02/01 12:31:50

Millisecond 1.0.0+

                
let p = new PersianDate('1400/2/1 12:30:40','jalali');

p.addMillisecond().toString('datetime:ss.c'); // 1400/02/01 12:30:40.1

p.subMillisecond().toString('datetime:ss.c'); // 1400/02/01 12:30:40.0

You can add or subtract the millisecond with a number.

                
let p = new PersianDate('1400/2/1 12:30:40','jalali');

p.addMillisecond(2200).toString('datetime:ss.c'); // 1400/02/01 12:30:42.200

p.subMillisecond(800).toString('datetime:ss.c');  // 1400/02/01 12:31:41.400