I can't check the time on my MBP retina because top right part of my screen is blacked out due to a

[cleanair]

What can I do to check the time?

Back when I used Leopard on an older MBP, I remember I could press on the F4 key which would lead to widgets, which included a clock.

 

[keysofanxiety]

What can I do to check the time?

Back when I used Leopard on an older MBP, I remember I could press on the F4 key which would lead to widgets, which included a clock.

4 finger swipe from left to right on your trackpad should bring up the widgets. Alternatively you can press F12/FN+F12 on your keyboard, or F4/FN+F4 to bring up the Dashboard (depending on what year Mac you have).

If you're still having issues, you can open it from the app.