Hi Raj. When signed into Word Press, click on Post (one of the icons on the left of the screen.
Then take the cursor over your the title of your post and you will see a number of icons show. Click on quick edit and a screen comes up where you can adjust the date to anyone you want. Then look towards to your right where you will see “update” icon and click on it once you are done.
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Login to your admin section
Click on Posts
Click on Edit under the Post you want to change the date
To the right under the Publish module click on Edit next to the Published on date
Change the date to the desired value
Click on update
Also might want to review some of the documentation
New To WordPress – Where to Start
Thanks!
Hope it only changes the date of that particular post and not for all!
If so,what would be the remedy to revert back?
I would recommend you read and perform WordPress Backups so that you can revert back.
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