http://www.timeticker.com
2. Official US Time
http://www.time.gov
3. CNN World Time
http://www.cnn.com
4. US Time Service Department
http://www.tycho.usno.navy.mil
5. Time Zone Converter
http://www.timezoneconverter.com
6. www.timeanddate.com
http://www.timeanddate.com
7. World Time Zone
http://www.worldtimezone.com
8. Greenwich Mean Time
http://www.greenwichmeantime.com
9. NIST
http://www.boulder.nist.gov
10. World Time Server
http://www.worldtimeserver.com