- A brief history of Time Zones ...How do time zones work? Perhaps equally important is why do we even have time zones?
- A Walk Through Time ...The Evolution of Time Measurement through the Ages
- Astronomical Time Keeping
- Big Timer ...A fullscreen countdown timer for workshops, meetings and presentations
- Check Your System Clock
- Daylight Saving Time
- Doomsday Clock
- Doomsday Algorithm
- e.ggtimer ...Use it like an egg timer or a count down timer
- Every Time Zone ...Never warp your brain again with time zone math
- Extra Second Added to 2005
- Greenwich Mean Time
- Guide to Metric Time ...An attempt to create a decimalized time system for our modern base-10 using world
- How Time Travel Will Work
- It's About Time!
- Leap Seconds
- Leap Seconds ...What are they and why do we have them?
- NAWCC ...National Watch & Clock Museum
- Night & Day Map
- Official U.S. Time
- Precise Time ...featuring all things Time
- Qlock ...Qlock takes the world clock to a new level
- Sidereal Clock
- Society for Deceleration of Time
- Stopwatch ...Clock, Timer, Countdown etc
- Sun or Moon Rise/Set Table
- Sunrise, Sunset Calendars and Local Time ...Print your own custom sunrise and sunset calendar. Moonrise and moonset time and moon phase information is also available
- Sunrise, Sunset & Twilight Times
- Ten Things Everyone Should Know About Time ...“Time” is the most used noun in the English language, yet it remains a mystery
- The Time Now ...Time, weather, travel, service
- Time & Date
- Time and Frequency ...Centre for precise time and frequency measurement
- Time Facts ...Find out about atomic time, Universal Time, civil time, local time, sidereal time and solar time
- Time FAQ
- Time Ticker
- Time Travel
- Time Zone Converter
- Time Zones for PC's
- The Equation of Time
- What Time Is It ?
- What Time is It?
- What Time is It?
- World Clock ...Rinning counts on various subjects and trvia
- World Time Buddy ...Convenient world clock, time zone converter, and online meeting scheduler
- World Time from US Naval Master Clock
- World Time Server
- World Time Zone Map
- World Time Zones