ntp1.openbsd.se (stratum 1, se.pool.ntp.org)

Server stats.  ntp2.openbsd.se.

Past 24 hours: 5 minute samples, 5 minute averages

Past 7 days: 30 minute averages

Past 30 days: 3 hour averages

Past 90 days: 6 hour averages

Past 365 days: 24 hour averages