Clock

The clock display.

Blizzard added a clock to the Diablo III interface as an undocumented feature in Beta Patch 10 in January 2012. The clock displays in the upper right, above the minimap, and it shows your local time in a small digital display.

Clock Revealed

This feature was first announced in early January, 2012.[1]

We’re already working on implementing an in-game clock, and the current design is to have it associated with the mini-map (but that of course may change before release). Since it’s not a critical feature, though, it may or may not be added to the beta.