Change Date and Time Formats in Windows 10

Step 1: Goto Settings Tab

Step 2: Click on Time & Language options

 Step 3: Click on Date and Time

 Step 4: Click on "Change Formats option in the above window. You will get the below window Change Date and Time Formats

 Step 5:Option to change the First day of week and to change the short date type as below

Step 6: Change the Long date.

 Step 7:Change the Short Time format as below

 Step 8: Change the Long date as below.

Cheers,
Venkatesan Prabu .J
Microsoft MVP - Data Platform