The websites in this section have to do with the science of time in general, as well as the relationship between time and humans.
Regular Websites
A Walk Through Time: The Evolution of Time Measurement Through the Ages
The history of timekeeping from ancient to modern methods. Features illustrations and information on sun clocks and water clocks, mechanical clocks and quartz clocks, and atomic beam clocks. The site also has information on Greenwich Mean Time and world time zones. From the National Institute of Standards and Technology (NIST) Physics Laboratory. - A Walk Through Time: The Evolution of Time Measurement Through the Ages
http://physics.nist.gov/GenInt/Time/time.html
An interactive site to find out how many seconds, minutes, hours, days, have you been alive. Also checks the time to any date in the past or future. - Customize Countdown
http://www.timeanddate.com/counters/customcount.html
The website discusses the history and other pertinent information regarding the Daylight Saving Time. There's also the early adoption and US law as well as worldwide daylight saving. The website also offers books focused on Daylight Saving Time. - Daylight Saving Time
http://www.webexhibits.org/daylightsaving
A complete guide to time and time zones; summer time and daylight-saving time world-wide. Provides comprehensive information on Greenwich and time issues, including GMT converter, maps and links to mirrors around the world. - Greenwich Mean Time (GMT)
http://wwp.greenwichmeantime.com/
A popular alarm clock that one can use for free in any web browser. With two clicks one can set a free online alarm. Use this online alarm clock to wake yourself up or to set convenient online reminders. Offers customizable options for clock size and background color. The website is simply designed. - Online Clock
http://onlineclock.net
A public service provided cooperatively by the National Institute of Standards and Technology (NIST), and its military counterpart, the U.S. Naval Observatory (USNO). Includes links to historical and general interest exhibits pertaining to time. - The Official U.S. Time
http://www.time.gov/
Time and time zone converter. Allows you to create a printable reference card with base reference and cities of your interest. Plan International travel, phone calls, meetings. Know the time anywhere in the world using a frequently updated time zone database. - Time Zone Converter
http://www.timezoneconverter.com
A graphic view of the current time around the world. Click on a location on the map, or browse the scrollable list, and TimeTicker provides the precise time and date for that zone. - TimeTicker
http://www.timeticker.com/
Interactive world atlas and information on local time as well as sunrise and sunset times in hundreds of cities worldwide. Current time for the map center will show as offset from UTC. Settings that can be customized include zoom in/out, longitude and latitude grid, center for the globe projection, and national borders. - World Time
http://www.worldtime.com/
Provides the correct world times with daylight saving adjustments for every time zone in any country or major city of the world, GMT offset, and a section map. Features a time converter, world time database and atomic clock information. - World Time Server
http://www.worldtimeserver.com/
The World Time Zone is a great place to find out the current time anywhere in the world. You can also get a time zone map here. The website's most useful tool is the call planner which helps people arrange good times for calls between different time zones. - World Time Zone
http://www.worldtimezone.com
The current time in all countries and major cities of the world. Every world time zone listed and clocks to download. - World Time Zones
http://www.world-time-zones.org/