sing-box/docs/configuration/ntp/index.md

NTP

Built-in NTP client service.

If enabled, it will provide time for protocols like TLS/Shadowsocks/VMess, which is useful for environments where time synchronization is not possible.

Structure

{
  "ntp": {
    "enabled": false,
    "server": "time.apple.com",
    "server_port": 123,
    "interval": "30m",
    
    ... // Dial Fields
  }
}

Fields

enabled

Enable NTP service.

server

==Required==

NTP server address.

server_port

NTP server port.

123 is used by default.

interval

Time synchronization interval.

30 minutes is used by default.

Dial Fields

See Dial Fields for details.