chronyで手動同期

$ sudo chronyc -a makestep
200 OK
200 OK

chronyの状態確認

$ chronyc sources
210 Number of sources = 2
MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
^* ntp1.jst.mfeed.ad.jp          2   6   377    40   +247ms[-1248ms] +/-   80ms
^- ntp2.jst.mfeed.ad.jp          2   6   377    40   +236ms[ +236ms] +/-   93ms