$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.17 2 u 298 1024 377 28.325 1.004 2.312 *210.173.160.57 133.243.236.20 2 u 218 1024 377 27.649 0.945 0.228 +210.173.160.87 133.243.236.19 2 u 266 1024 377 27.752 1.000 0.111