On Thursday, April 12, 2007 at 23:21:28 -0500, Matthew R. Dempsky wrote: >On Thu, Apr 12, 2007 at 10:34:25PM +0200, Maurice Janssen wrote: >> The manpage for rdate(8) uses the -c option in the examples at the >> bottom (leap second correction), but the given host (ptbtime1.ptb.de) >> doesn't need this. > >SNTP gives time in UTC, but some sysadmins would prefer to synchronize >their system time to TAI rather than UTC (e.g., so time values >returned by gettimeofday(2) progresses normally during leap seconds). >The -c argument for rdate is intended for their use.
Yes, that's clear. >Basic rule of thumb is use -c if and only if you're using a timezone >file under /usr/share/zoneinfo/right/ (i.e., one that includes leap >second info). Otherwise your clock will most likely be off by 23 >seconds. I missed the word 'right' in the timezone in the example, thanks for pointing it out. Maurice
