- a.m. and p.m.
What do a.m. and p.m. mean?
http://scienceworld.wolfram.com/astronomy/AnteMeridiem.html
(Added: Sun Oct 27 2002)
- Calendars
There are two basic sources for calendars presently in use: the monthly motion of the Moon (Lunar calendars) and the yearly motion of the Sun (Solar Calendars). Read about the different calendars: Roman, Julian, Gregorian, etc.
http://csep10.phys.utk.edu/astr161/lect/time/calendars.html
(Added: Sun Oct 27 2002)
- Daylight Saving Time
The origin, history, and practice of Daylight Saving Time from Benjamin Franklin to the present.
http://webexhibits.org/daylightsaving/b.html
(Added: Sat Oct 26 2002)
- How Time Works
Howstuffworks provides information about Time's Origins, Clocks, Time Zones, Daylight-Saving Time, the Calendar, B.C. and A.D.
http://www.howstuffworks.com/time.htm
(Added: Sat Oct 26 2002)
- Leap Year
Find out how leap years came about, and how a certain year is determined to be a leap year. This site was provided by the Royal Greenwich Observatory.
http://www.rog.nmm.ac.uk/leaflets/leapyear/leapyear.html
(Added: Sat Oct 26 2002)
- Names of the Months
This site provides information about the origin of the names of the Months.
http://www.crowl.org/Lawrence/time/months.html
(Added: Sat Oct 26 2002)
- North American Time Zones and GMT
This site gives the time difference between GMT and local time for both standard time and summertime (Daylight Savings Time), so you can convert to local time from GMT.
http://atm.geo.nsf.gov/ieis/time.html
(Added: Sat Oct 26 2002)
- Origin of the Seven-Day Week
Very detailed and authoritative with footnotes and descriptions on the origin of week day names.
http://www.greenheart.com/billh/origin.html
(Added: Sat Oct 26 2002)
- The Month
What is the connection between the moon and the month?
http://www.rog.nmm.ac.uk/cgi-bin/mfs.cgi/www/rog/wg2/archives/1?link=http://www.rog.nmm.ac.uk/education/numeracy/Numtable.html&file=/www/rog/docs/education/numeracy/Numtable.html&line=141#mfs
(Added: Sat Oct 26 2002)
- The Official U.S. Time
The Time and Frequency Division, part of NIST's Physics Laboratory, maintains the standard for frequency and time interval for the United States, provides official time to the United States.
http://nist.time.gov/
(Added: Sun Oct 27 2002)
- Time Service Department
The Official Source of Time for the Department of Defense (DoD) and the Global Positioning System (GPS), and a Standard of Time for the United States
http://tycho.usno.navy.mil/
(Added: Sun Oct 27 2002)
- Time Zones
This site provides background information and explanations for Time Zones.
http://toi.iriti.cnr.it/en/timezone.html
(Added: Sun Oct 27 2002)
- Timekeeping
Historically, the regular motion of objects in the sky served as the basis for timekeeping. Read about sidereal days and solar days as well as time zones and universal time.
http://csep10.phys.utk.edu/astr161/lect/time/timekeeping.html
(Added: Sun Oct 27 2002)
- What is Universal Time?
The answer to this question is provided by the US Naval Observatory Astronomical Applications Department.
http://aa.usno.navy.mil/faq/docs/UT.html
(Added: Sat Oct 26 2002)
|
