Are you looking to display additional clocks in Windows 10 desktop?
If you are someone who constantly communicate online with family and friends or with colleagues who resides abroad, then you will want monitor their local time zones. You can enable display of additional clocks in Windows 10 desktop. I first discovered the ability to display additional clocks when Microsoft first introduced this feature in the Windows 7 release. Today, Windows 8 and 10 continue to carry this feature.
Simply by clicking on the left mouse button pointing to the PC clock at the bottom RHS toolbar, I can see my local timezone and the other 2 time zones simultaneously (see featured image). Or I can choose to do a mouse hover over the PC clock to have a 5 second glance at the additional clock times (see image below)