Brief Final output will be as shown in calendar with two clocks above the calendar grid. How to add multiple time zone clocks to Windows 10 Open Settings . Click on Time & language . Click the Add clocks for different time zones link. In Date & time, under the "Additional Clocks" tab, check Show this Clock to enable Clock 1 . Select the time zone from the drop-down menu. Type a descriptive name for the clock. Repeat steps 4, 5, and 6 to enable Clock 2 . Click Apply . Click OK to complete the task. After completing the steps, you can hover over or click the clock in the system tray to view the additional clocks. References https://www.windowscentral.com/how-set-multiple-time-zone-clocks-windows-10