Time as documentary:

The Human Clock (a documentary timepiece)
10X10 (time told through news and images)

Some ways of measuring time:

The official U.S. time
Time Zones
The doomsday clock
Internet time and the World clock
New Earth Time
The Digital Time
One World Time
WRLD.time
The long now (and 10,000 year clock)
STIME
Black hole time
Nature's Harmonic Simultaneous 4-Day Time Cube

Flash-based clocks:

Yugo Nakamura's industrious clock
Clocksphere
Clockblock
Clock guts
The cyber-junkie collection
Firefly clock
3D clock
Anchor timer