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Swift Add day, week, month, and year to the current date in the example


 Add day, week, month, and year to the current date swift with example

This tutorial shows how to do the following things in Swift

  • Get Yesterday’s date
  • Get Tomorrow’s date
  • Add and subtract 1 week to the Current date
  • Add and subtract 1 month to the Current date
  • Add and subtract 1 year to the Current date

To add any value to the Current Date, Calendar provides the date method with the below syntax

date(byAdding:to:options:)

byAdding: tells to add .day or .month,.year and .weekOfYear value: value can be positive or negative to: specify current date.

How to add and subtract a day, month, week, and year from a current date

Current date returns using new Date() object.

  • example to get the Current Date

Date() object returns the current date and time

import Foundation
let date = Date()
print(date) 

Output:

2022-10-30 11:16:16 +0000
  • example to get Yesterday’s Date

Date() object returns the current date and time


import Foundation
let date = Date()
// yesterday date
let yesterday = Calendar.current.date(byAdding: .day, value: -1, to: date)!
print(yesterday)

Output:

2022-10-30 11:16:16 +0000
  • example to get Tomorrow’s Date

import Foundation
let date = Date()
// tomorrows date
let tomorrow = Calendar.current.date(byAdding: .day, value: 1, to: date)!
print(tomorrow)

Output:

2022-10-30 11:16:16 +0000
  • example to add and subtract 1 week to the current Date

import Foundation
let date = Date()
// add  1 week to current date
let nextWeek = Calendar.current.date(byAdding: .weekOfYear, value: -1, to: date)!
print(nextWeek)
// substract  1 week to current date
let previousWeek = Calendar.current.date(byAdding: .weekOfYear, value: 1, to: date)!
print(previousWeek)

Output:

2022-10-30 11:29:12 +0000
2022-10-30 11:29:12 +0000
  • example to add and subtract 1 month to the current Date

import Foundation
let date = Date()
// add 1 month to current date
let onemonth = Calendar.current.date(byAdding: .month, value: 1, to: date)!
print(onemonth)

// substract 1 month to current date
let previousMonth = Calendar.current.date(byAdding: .month, value: -1, to: date)!
print(previousMonth)

Output:

2022-08-03 11:29:12 +0000
2022-10-30 11:29:12 +0000
  • example to add and subtract 1 year to the current Date

date function added with byAdding: .year and value 1 to get next year today date. date function added with byAdding: .year and value -1 to get previous year today date

// add 1 year to current date
let nextYear = Calendar.current.date(byAdding: .year, value: 1, to: date)!
print(nextYear)

// substract 1 year to current date
let previousYear = Calendar.current.date(byAdding: .year, value: -1, to: date)!
print(previousYear)

Output:

2023-07-03 11:31:01 +0000
2021-07-03 11:31:01 +0000
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