Hi If you have a time source to work with, generating a different time scale is just a math problem. In most cases it's not a very complex one (subtract 19 seconds and move on). If you don't have a time source, then generating any time scale will be a challenge.
Given the low cost of computing gizmos these days, doing the math to come up with what ever you want is not going to be all that hard or expensive. Bob -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of cook michael Sent: Wednesday, August 10, 2011 10:35 AM To: time-nuts@febo.com Subject: Re: [time-nuts] Why not TAI? Le 10/08/2011 12:55, Attila Kinali a écrit : > > If TAI is a paper clock, what else should be used if a strictly monotone > time scale is needed? Do you have any specific application in mind? If you need an SI seconds rated scale, then you need something based on TAI. GPS time has a TAI second rate and is monotonic. But of course you would need a GPS receiver to access it. > And what makes UTC different from TAI to be a "real clock", as UTC is > derived from TAI by adding leap seconds? I don't think TAI is any less real than UTC. UTC just happens to be the international transmitted time scale. TAI is not generally available, though both GPS time, and UTC have the same rate. > Would a reverse definition of TAI (or rather TAI' ) by using UTC without the > leap seconds be a good enough approximation? Well, UTC doesn't exist without leap seconds by definition, but if you only have UTC available to be able to track TAI , then you can recover the TAI scale by deducting leap seconds. > I'm quite sure i'm not the first one asking this question, but i couldn't > find an answer, neither with google nor in the time-nuts archives. > > Attila Kinali _______________________________________________ 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. _______________________________________________ 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.