$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.19 2 u 966 1024 377 27.621 0.393 0.273 +210.173.160.57 133.243.236.19 2 u 971 1024 377 27.865 1.059 0.240 *210.173.160.87 133.243.236.20 2 u 907 1024 377 28.541 0.582 0.955