時刻調整サーバー

pool.ntp.org: How do I setup NTP to use the pool?

サーバー: jp.pool.ntp.org

If you're using a recent Windows version, you can use the ntp client that is built into the system. As administrator enter

w32tm /config /syncfromflags:manual /manualpeerlist:0.pool.ntp.org,1.pool.ntp.org,2.pool.ntp.org,3.pool.ntp.org