$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.20 2 u 660 1024 377 28.565 7.752 0.266 *210.173.160.57 133.243.236.20 2 u 646 1024 377 27.766 7.223 0.585 +210.173.160.87 133.243.236.19 2 u 717 1024 377 28.256 7.489 0.182