How to adjust clock / Samsung Galaxy Core

[SpiltBwater]

I have Galaxy Core phone. Clock is 2 mins fast. How to manually adjust it to show accurate local time?

***Edited to add labels***

[KAPABLE-K · Accepted solution]

@SpiltBwater 

1. From any Home screen, tap Apps.
2. Tap Settings.
3. Scroll to 'System,' then tap Date and time.
4. Tap Automatic date and time to clear the check box. 
5. Tap Set date to set the date.
6. Tap Set time to set the time.