Hi Poul: I've more than once misread a clock display of the type 12:34:05. I've noticed that military clocks show 1234:05 and there's no mistaking the time. Seems like a more foolproof display format.
Have Fun, Brooke Clarke http://www.prc68.com Poul-Henning Kamp wrote: > In message <c5e4ee4d.6481%james.p....@jpl.nasa.gov>, "Lux, James P" writes: > >> On 3/17/09 5:58 AM, "Arnold Tibus" <arnold.ti...@gmx.de> wrote: >> >>> Interesting facts: >>> The GPS navigation system has GPS Time as its basis. Galileo >>> will have TAI as its basis. GLONASS has UTC as its basis, >>> Air traffic controllers are using UTC. >>> >> The latter is probably because air traffic control is basically done at a >> resolution of 1 minute [...] > > The underlying requirements is 10 seconds, and many ATC installations have > special UTC clocks with five digits because that makes it pretty hard to get > it wrong. > > One does pause on seeing a clock with 12:34:5 where the last digit clearly > isn't dead, because there is no space for it :-) > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
