Rob van der Putten <[email protected]> writes: >Hi there
>Unruh wrote: >> It depends. Some people regard the leapsecond as counting >> 23:59:0 23:59:1 ...25:59:59 23:59:60 0:0:0 >> while I think the leapsecond standard is actually >> 23:59:0 23:59:1 ...25:59:59 0:0:0 0:0:0 >> Ie it occurs on teh first second of the new year, rather than the last >> second of the old. I assume BBC (and ntp ) follow the former. >AFAIK, the first is the standard, the second the implementation. Yes, the first is the definition of UTC (http://tycho.usno.navy.mil/leapsec.html) and I think ntp follows the second (http://www.cis.udel.edu/~mills/leap.html)--Ie, any rereading of the clock during the time of that leap second would give 00:00:00 with a usec return that advances 1 usec per reading. Ie it simply stops the clock for a second. The unix clock will never show 23:59:60. Is this also true of the time indicated by gps? Looking in the Garmin 18LVC manual it says it uses the latter-- two reports of 0:0:0 one second apart. >Regards, >Rob _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
