Shows current time and date of other time zones, next to your computer clock. On mouse over, the full time (with minutes) is diplayed, and comment or date. By left click, you can open a small windows for display time (and date or comment) on top of all other windows (with transparency). Can display 1 to 9 clocks at same time. Can synchronize your computer's clock to atomic time server (by internet). You can setup alarm (alert) for reminder (ex: for not forget a meeting).