I'm trying to get actual NTP drift on Macs connected to a local NTP server.
/var/db/ntp.driftfile I get -37.521 which according to PPM to milliseconds conversion gives -3241ms of drift.
ntpq -c lpeerI get something like this:
remote refid st t when poll reach delay offset jitter ============================================================================== *172-1-1-5.light 184.108.40.206 2 u 57 64 377 199.438 38.322 29.012
which gives me offset of 38.322ms
sntp 220.127.116.11outpus this:
2016 Jan 21 18:41:45.248591 +0.019244 +/- 0.022507 secs
which says having about 19ms of drift.
I'm confused which one the approaches gives accurate NTP drift?