Topic Path: Symbol Reference > Classes > TIdSNTP Class
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TIdSNTP Class

Implements a Simple Network Time Protocol client.

File
TIdSNTP = class(TIdUDPClient);

The TIdSNTP implements a client for the Simple Network Time Protocol (SNTP), as described in the Internet standards document: 

RFC 2030 - Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI  

SNTP is an extremely reliable protocol for time-synchronization on the Internet with accuracy from 1 to 50 milliseconds, even over great distances. 

SNTP Version 4 includes certain optional extensions to the basic Version 3 model. TIdSNTP does not implement the optional extensions for either Key Identifier or Message Digest portions of the NTP/SNTP message format. 

TIdSNTP, a descendant of TIdUDPClient, utilizes SNTP in the unicast client mode.

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