https://delphiallimite.blogspot.com/2010/05/la-libreria-synapse-y-5.html
Delphi al Límite: La librería Synapse (y 5)
https://www.pool.ntp.org/zone/europe
pool.ntp.org: NTP Servers in Europe, europe.pool.ntp.org
In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors.
IPv4
https://es.wikipedia.org/wiki/Network_Time_Protocol
La librería Synapse Delphi al Límite
delphiallimite blogspot libreria synapse
https://pjo2.github.io/tftpd64/
Synapse librería THiloServidor
Ararat Synapse project
https://github.com/Dikoy/ararat_synapse
Ararat Synapse project fork (http://synapse.ararat.cz/). Checked out from (svn://svn.code.sf.net/p/synalist/code/trunk synalist-code).
Synapse Library
https://github.com/dimmaq/delphi-synapse