Marvin Schneider, New York City's Official Clock Master is responsible for keeping the giant public clocks of the five boroughs running smoothly; the beautiful photo essay with an accompanying interview is not to be missed for fans of giant gears & sprockets.
posted by jonson on Jun 10, 2007 - 18 comments

The National Maritime Museum, Greenwich has some excellent online collections related to maritime history and technology, including telescopes, marine chronometers, sundials, and a whole lot more. Some stuff I've been looking at: John Harrison's chronometers (described in Dava Sobel's book Longitude), polyhedral sundials, and pocket globes.
posted by carter on Mar 15, 2006 - 4 comments

At 7 PM EST today, 80 cesium-based atomic clocks around the world will stop for precisely one second, to take into account the gradual slowing of the Earth's axial rotation.
posted by Rothko on Dec 31, 2005 - 40 comments

Internet Clocks, Counters and Countdowns
posted by Cryptical Envelopment on Dec 6, 2004 - 14 comments

24:39 NASA is running their Spirit Martian explorer program on Martian solar time. With the project day running 39 minutes longer than a real day, engineers found they faced difficulties adjusting to this virtual timezone. Their solution was nearly as old as timekeeping itself.
posted by Ogre Lawless on Jan 9, 2004 - 13 comments