This post introduces 2 ways to show day of week in Windows 10 taskbar clock.
Check the detailed guides below.
you’re able to see the clock with current time and date at the taskbar in Windows 10.

Check below how to add week day to clock in Windows 10 with 2 ways.
Step 2.Next clickClock and Regionin Control Panel, and clickRegion.
Step 3.ClickAdditional settingsbutton in Region window.

Step 4.Then you’ve got the option to customize the way the date is displayed underDate formats.
you’re able to also customize the date format using the codes below.
Here takeMon, April 6, 2020as example.
You should useddd, MMMM d, yyyyin Short date field.
you might also show day of week in Windows 10 taskbar clock by editing the registry in Windows 10.
Check how to do it below.s
Step 2.Next click as the following path: HKEY_CURRENT_USER\Control Panel\International.
Step 3.In the right window, double-clicksShortDatekey, and add ddd at the beginning of Value data.
Click OK to save the changes.
start your Windows computer to make the changes take effect.
You should see the day of week is displayed in system tray clock at Windows taskbar.