I checked ALL the settings under stores->configuration. Is there a view mode or something else?
Go to admin panel,click on,
This is for frontend Locale Changes,
Stores -> Configuration -> General
Search Locale Options on that page.
You have to go for Locale Option in that page.
You can manage from here.
For adminpanel Locale Changes
Go to Admin panel,
Login with your usedid.
Now click on Top Right, Admin Link, Click on Admin Dropdown will open,
Click on Account Settings (admin)
New page with set your locale from dropdown field