(1) Ping -n 10000 0.pool.ntp.org
Ping statistics for 193.182.111.142: Packets: Sent = 10000, Received = 7833, Lost = 2167 (21% lost), estimated round trip time in milliseconds: Minimum = 236ms, Maximum = 558ms, average = 327ms
(2) ping -n 10000 ping asia.pool.ntp.org
Ping statistics for 203.107.6.88: Packets: Sent = 10000, Received = 9990, Lost = 10 (0% lost), Estimated round trip time in milliseconds: Min = 45ms, Max = 86ms, average = 52ms
(3) ping -n 10000 2.time.android.com
Ping statistics for 120.240.95.36: Packets: Sent = 10000, Received = 9984, Lost = 16 (0% lost), Estimated round trip time in milliseconds: Min = 15ms, Max = 34ms, Average = 16ms
(4) ping -n 10000 2.android.pool.ntp.org
Ping statistics for 203.107.6.88: Packets: Sent = 10000, Received = 9988, Lost = 12 (0% lost), Estimated round trip time in milliseconds: Min = 45ms, Max = 86ms, average = 52ms
(5) ping -n 10000 ntp2.aliyun.com
Ping statistics for 203.107.6.88: Packets: Sent = 10000, Received = 9984, Lost = 16 (0% lost), Estimated round trip time in milliseconds: Min = 45ms, Max = 60ms, average = 52ms
Overall, 2.time.android.com is the shortest and more stable