Corner Computer How To Get Time/date In Bottom Right Corner Of Computer Monitor?

How to get time/date in bottom right corner of computer monitor? - corner computer

I recently completed a new team, and given all my old computer to the time and date in the toolbar at the bottom of the extreme right in the windows.

The new computer does not have the time / date in the lower right corner, and I really miss.

How can the time and date that is not visible at all times?