I’m not sure if I’m understanding your request correctly, but here are a few that suggest timecode, but not sure about expressing the concept of time itself...

FF Alega
http://www.fontshop.com/?fuseaction=catalog.fontpackage&searchby=manufac...

Clicker
http://www.fontshop.com/index.cfm?fuseaction=verity.search&font_categori...

Maybe something dotted?

http://www.fontshop.com/?fuseaction=catalog.fontdetail&searchby=manufact...

ChrisL

Well, I guess the best way to say it is something that looks “dot-matrixy,” “digital clocky,” on “monospacey.” :)

http://www.myfonts.com/search?search%5Btext%5D=led

http://www.myfonts.com/fonts/device/drexler/

http://www.myfonts.com/fonts/device/telecast/

Tim

Dotmatrix

ChrisL

Lomo?