Free time utilities

InstantTimeZone
A unique freeware utility that displays the current time and date, for any time zone, in the system tray next to your computer clock. (For Windows).

TClockEx
Here's a nifty free clock utility for your Windows taskbar. Install this baby and it fits seamlessly into the taskbar (in the lower right hand corner of your desktop) and serves up a useful display, showing the seconds, as well as the hour and minute. There's an optional date display, as well. (For Windows).

Atomic Clock Sync
This helpful freeware utility ensures that your computer's clock is accurately set by referencing an atomic clock server. The program can also be configured to automatically check the time on your PC's clock each day. (For Windows).

Close Enough
Here's a free timer utility program that offers a novel and interesting way of presenting the current time on your Windows desktop. Configurable and customizable. (For Windows).

Vremya
Here's a handy little freeware time utility for Mac users. Vremya lets you precisely set the time on your Mac by logging into a Network Time Protocol (NTP) public time server. (For Macintosh only).

iMarvel
A free browser add-on that bills itself as the Internet's first alarm clock radio/TV. This utility runs within your browser and displays local and world clocks and features up to 40 alarms & reminders; and lets you designate preset stations, so you can quickly listen in to your favorite RealAudio radio stations. (For Windows and Macs).

CLOX
A useful free software program, CLOX shows you, at a glance, what the time is across the globe via both analog and digital displays. There's also a calendar and sophisticated clock alarm feature. There's also a new feature called the Daylight Map which shows you at a glance, whether it is night or day in different parts of the world. Here's a screen shot. CLOX also offers many plug-ins which extends its usefulness even further. (For Windows).

Automachron
This is an excellent freeware utility for setting your computer's internal clock over the Internet. You can run it as an icon in the Windows taskbar tray. This program is the best way to ensure that your computer is set to the correct time. (For Windows).