USNO Master Clock Time
tycho.usno.navy.mil/what.html

US National Debt Clock
Shows the daily increase of the national defecit, and the cost per person. With links to related resources, such as: National Debt In the News, sites concerned about the National Debt, etc.
www.brillig.com/debt_clock/

USNO Pacific Standard Clock
tycho.usno.navy.mil/pstclock.html

USNO Eastern Standard Clock
tycho.usno.navy.mil/estclock.html

USNO Central Standard Clock
tycho.usno.navy.mil/cstclock.html

USNO Mountain Standard Clock
tycho.usno.navy.mil/mstclock.html

USNO Hawaii Standard Clock
tycho.usno.navy.mil/hstclock.html

USNO Alaska Standard Clock
tycho.usno.navy.mil/astclock.html