Você pode usar o w32tm e fornecer os nomes dos computadores com os quais deve entrar em contato, algo como
w32tm /monitor /computers:0.asia.pool.ntp.org,1.asia.pool.ntp.org
Analyzing:delayoffset from local clock
(unknown)Stratum: 2
delayoffset from local clock
Stratum: 2
Warning:
Reverse name resolution is best effort. It may not be
correct since RefID field in time packets differs across
NTP implementations and may not be using IP addresses.
0.asia.pool.ntp.org[203.158.118.2:123]:
ICMP: 291ms
NTP: +2.2762642s RefID: [0x3C45B9CB]
1.asia.pool.ntp.org[61.110.197.50:123]:
ICMP: 345ms
NTP: +2.2593270s RefID: time.nist.gov [192.43.244.18]