I just noticed: Web Results 1 - 10 of about 157 for unixkcd. (0.04 nanocenturies) I didn't know google showed nanocenturies!

EDIT: Apparently google is just having fun as when I refresh I also see:

Web Results 1 - 10 of about 190 for unixkcd. (1.21 gigawatts)

  Web Results 1 - 10 of about 190 for unixkcd. (11.90 parsecs)

Web Results 1 - 10 of about 198 for unixkcd. (0.02 femtogalactic years)

Web Results 1 - 10 of about 198 for unixkcd. (0.09 microfortnights)

Web  Results 1 - 10 of about 190 for unixkcd. (0.12 centibeats)

All interesting units of time. :)