Destination Timestamp: the time at which the reply arrived at the client.

Returns the leap second indicator.

NTP packet mode.

Originate Timestamp: the time at which the request departed the client for the server.

Poll Interval, in seconds to the nearest power of two.

Precision of the packet originator's clock, in seconds to the nearest power of two.

Receive Timestamp: the time at which the request arrived at the server.

Reference Timestamp: the time at which the local clock was last set or corrected.

Stratum level (time quality) of the packet originator's clock.

Transmit Timestamp: the time at which the reply departed the server for the client.

NTP/SNTP protocol version number.