Clocks and Timers

Absolute Time Corrector
Synchronize local PC time using the NIST Internet Time Service or LAN timeservers.
http://www.timeutilites.com/

Ace Clock
Transparent digital clock for your desktop with various interface themes. Provides scheduled time synchronization via Internet. Supports a customizable hour and or half an hour strikes, multiple alarms, quick reminders, countdown and stopwatch timers.
http://www.ecrew.org/

Acute Softwares Timer
Windows software featuring multiple alarms, stopwatches and timers.
http://www.acutesoftware.com.au/timer.html

Alarm++
Set multiple alarms that can display messages, run applications, send e-mail, and others. Specify if you want the alarm to display a message, play a sound, start an application, open a folder, or go to a web page.
http://www.12noon.com/

AlarmXP Pro
Customize the taskbar system clock and set alarms directly from it. Features include simple or recurring alarms, countdown and stopwatch timers, notes, a pop-up calendar, and Internet synchronization.
http://www.rpoint.com/pp/alarm-pro.aspx

AltrixSoft - Atomic Clock Time Software
Offers Chronograph, software for Windows that synchronize PC clock to Atomic Time.
http://www.altrixsoft.com

a-TimeSync
It can periodically check and synchronize the computer time with NIST atomic time servers with HTTP/Socks4/Socks4A/Socks5 proxy support, or synchronize time between computers, and can also act as a time server.
http://www.atsync.com/

Atom Time Synchronizer
Clock will periodically check and synchronize the computers time with a NIST atomic time server, or synchronize time between computers, and can act as a timeserver.
http://www.lmhsoft.com/timesync/

Atomic Clock
Sets the PCs clock according to the atomic clock at the National Bureau of Standards.
http://www.mtnsys.com/Pages/AtomicClock.htm

Atomic Clock Software - SyncTime Deluxe
A desktop program that calibrates the system time of the computer with the Atomic Time servers on the Internet using the Simply Network Time Protocol (SNTP). Has a skinnable user interface. [Windows 98/ME/NT/2000/XP]
http://www.rayslab.com/atomic_clock/atomic_clock.html

AtomSync
Windows shareware program that connects to an Internet timeserver and retrieve the official time and adjusts the computer accordingly. Features support for MS Agent, and the ability to act as a timeserver on your LAN.
http://www.blueprintsoftwareworks.com/atomsync/

AtomTime98
Shareware program that will synchronize your PC clock with the atomic clock server in Boulder, Colorado, by Bruce Adelsman.
http://www.atomtime.com/

Attache Transparent Clock
Transparent desktop clock with fully customizable appearance (digital or analog display, various colors, sizes and shapes), versatile alarms and reminders. Synchronizes time with atomic clock servers, and comes together with a screensaver.
http://www.softdemon.com/clock/

Chameleon Clock
Standard tray clock skinned using Winamp skins and bitmap digits, and offers all necessary clock functions, alarms, time adjusting via Internet and timezones.
http://www.softshape.com/cham/

ClockDummy
Atomic clock software which can speak the time, synchronize the PC clock, and enhance the graphics of the taskbar clock.
http://www.dummysoftware.com/clockdummy.html

The Cycle Clock
Cyclocke, is a Cycle Clock using the Gregorian calendar method. You see roughly where the planets are, the Moon phase, and any events you want to plug in.
http://ourworld.compuserve.com/homepages/anithmi/cyclocke.htm

DateTray
System tray date display and calendar for Windows 95/98/NT.
http://www.info-pack.com/datetray/

Desktop Atomic Clock
PC clock synchronization software solution for individual (home) users. Program to synchronize the PC clock with an atomic clock over the Internet. [Win 9x/NT 4.0/Me/2000/XP]
http://www.softros-tools.com/

Elprime Software - Elprime Clock
A skinnable analog clock, transparent in Windows 2000/XP/95/98/Me. It can automatically disappear when the mouse cursor moves over it. Synchronize time with atomic clock/LAN and has advanced alarm scheduler and handy calendar.
http://www.elprime.com/

HiClock
Synchronize the system clock to the exact time using the Internet. The program has two alarm clocks and supports skins. Once set up the host computer can serve as a timeserver to any size network.
http://www.hiclock.com/

Horas
Unobtrusive desktop world clock that displays the time in multiple time zones. Includes a time converter, a calendar, atomic time synchronization, and many styles and formats.
http://www.basta.com/ProdHoras.htm

Hours and Minutes
A background application that keeps track of what you're doing. It logs active time, and has the ability to create a timesheet.
http://www.hoursandminutes.com/

Little Multi Clock
An intuitive application to automatically synchronize a time clock with one of the U.S. atomic time clocks and it provides useful tools and options in working with accurate times.
http://littlemulticlock.com/LittleMultiClock/Files/LittleMultiClock.html

Music Alarm Clock
Play MP3 songs, CD tracks, videos or MPEG movies with this alarm clock. It also supports weekend sleeper, sleep and slumber, auto shutdown and gentle wake functions. [Windows 9x/NT/2000/ME/XP]
http://www.vioio.com/mp3alarmclock.htm

Paraben's World Clock
Is a world time clock, an atomic clock synchronizer, a stopwatch, and a countdown timer.
http://www.paraben.com/html/clock2.html

ProtoTime
Program which main function is to synchronize your the PC time using NIST Atomic Clock servers.
http://www.nehuenmultimedia.com.ar/html/atomic_clock.html

Say the Time
Hear the time, set alarms, style the taskbar clock, and synchronize the PC time, and other functions.
http://www.saythetime.com/

SClock Plus
The skinable speaking clock utility with alarm settings, scheduler and multilanguage speaking modules.
http://www.shelltoys.com/speaking_clock/

Speaking Clock Deluxe
Speaking time utility with multiple alarms, calculator and calendar. Features MS Agent and text to speech support in multiple languages.
http://www.lux-aeterna.com/clock/

Talking Time Keeper
Software will speak the time or date, featuring a calendar, reminders, alarms, countdown timers, and GUI with animated time lapse photography of the sky.
http://www.talkingtimekeeper.com/

Tardis 2000
Can find out what the right time is by accessing Internet-based Atomic Clocks, using networked time-servers, GPS (The Global Positioning System), and by listening for time broadcasts over a LAN.
http://www.kaska.demon.co.uk/

Time Recorder
Record the start time and end time of events, reminding one of everything, also can be used as a memo or diary.
http://timerecorder.51.net/

Time Sled
Comfortable time tracking utility.
http://www.enins.com/timesled/

Time Zones for PCs
Find the current time for anywhere in the world, correctly adjusted for daylight saving. Free 30 day trial software download includes a time zone converter, desktop clocks, and alarms.
http://www.timezonesforpcs.com/

TimeBuddy
A fun to use program with email reminders, alarms with audio clips and a graphical timer for scheduling system commands. Web based User Guide.
http://visualversion.com/timebuddy/index.html

TimeLeft
Clock, reminder, alarm clock, countdown, stopwatch and time synchronization utility using Winamp skins to show digits and text. Features include original design, different effects of digits show, options for customization and a tutorial. Two editions are available free and shareware.
http://www.nestersoft.com/timeleft/

TimesOwn
Program to tell you what time it is now in any time zone in the world. Adjusts for daylight savings and calculates global time differences.
http://www.cheqsoft.com/timesown.html

T-Minus Software
Countdown clock, a time calculator and desktop calendar.
http://www.thecountdownclock.com/

Trout's Internet Clock
Analog desktop clock, scheduler, time synchronizer, and world clocks for different time zones. Uses Microsoft Agent technology for text-to-speech announcements.
http://www.chemware.co.nz/tic.htm

UK Speaking Clock
Have the time announce and spoken to you using comical MsAgent character. The clock also uses skins to show the time and date to you. Currently support 5 different languages. [Windows 95/98/ME/NT4/2000/XP]
http://www.uk-software.com/speakingclock.htm

Utech Computer Solutions: World Time
A desktop utility that allows the user to view the time in a number of locations. Free demo version available.
http://www.utech.net.au/index.php?option=com_content&task=category&sectionid=1&id=1&Itemid=50

Virtual Stopwatch Pro
Runs as a stopwatch, a countdown timer, or a clock, supports a full-featured time logging system. Set up alarms that beep, play a WAV file, launch a program, or display a message. [Windows 95/98/Me/NT/2000/XP]
http://www.springcreeksoftware.com/

XNote Stopwatch
Digital stopwatch and countdown timer utility to measure time intervals in decimal seconds, seconds, minutes and hours.
http://www.xnotestopwatch.com/

Yet Another Time Synchronizer
Automatically sets a system clock to any of a number of time services available via the Internet, or corporate intranet. It supports multiple servers, and time service protocols.
http://www.dillobits.com/