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How to add/substract days to Date in Java 8?

This page shows examples on how to add/substract days, hours, weeks, months or years to date object using Java8 new date and time APIs. Java 8 introduced plus and minus related methods to make it easier.

package com.java2novice.datetime;

import java.time.LocalDateTime;

public class AddDaysToDateEx {

	public static void main(String[] args) {

		LocalDateTime ldTime =;
		System.out.println("Current date time: "+ldTime);

		// add 10 days to current time
		LocalDateTime advLdTime = ldTime.plusDays(10);
		System.out.println("Date time after 10 days: "+advLdTime);

		// add 5 hours to crrent time
		LocalDateTime advLdTime1 = ldTime.plusHours(5);
		System.out.println("Date time after adding 5 hours: "+advLdTime1);

		// date one month before
		LocalDateTime prevLdTime = ldTime.minusMonths(1);
		System.out.println("Date one month before: "+prevLdTime);

		// date two week before
		LocalDateTime prevLdTime1 = ldTime.minusWeeks(2);
		System.out.println("Date two weeks before: "+prevLdTime1);

Current date time: 2015-12-16T09:38:15.975
Date time after 10 days: 2015-12-26T09:38:15.975
Date time after adding 5 hours: 2015-12-16T14:38:15.975
Date one month before: 2015-11-16T09:38:15.975
Date two weeks before: 2015-12-02T09:38:15.975
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Java-8 Date and Time API Examples

  1. Java 8 LocalDateTime example.
  2. Java 8 ZonedDateTime example.
  3. Java 8 LocalDate example.
  4. Java 8 LocalTime example.
  5. Create date time with custom values in Java 8.
  6. Java 8 Instant (Timestamp) example.
  7. Java 8 Period example.
  8. Java 8 Duration example.
  9. Java 8 Date parsing and formatting example.
  10. How to compare two dates in Java 8?
  11. How to get current date and time Java 8?
  12. How to calculate execution / elapsed time Java 8?
  13. How to convert string to Date Java 8?
  14. How to add/substract days to Date in Java 8?
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Difference between Enumeration and Iterator
The functionality of Enumeration and the Iterator are same. You can get remove() from Iterator to remove an element, while while Enumeration does not have remove() method. Using Enumeration you can only traverse and fetch the objects, where as using Iterator we can also add and remove the objects. So Iterator can be useful if you want to manipulate the list and Enumeration is for read-only access.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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