Game quit time and pause time?

Hi,I want to make a Hang up function for a mobile game.That could get game items by outlietimes.
How could I get the game quitTime,pauseTime?
And the time must be online time ,not local time.
Need for your help from "Skcai"

 

Save the real time in PlayerPrefs.
You can get that from System.DateTime.Now;

 

Thanks! By the way,If the quit operation executed in back , how to save get the realTime. I mean the application is outline and quit.When should I do Saving operation ?

 

You can save every second, or every 10 seconds or every minute, depending on how important the time resolution is for you.

 

Got it! Thanks so much~