A Day Time Client
From RFC 867 (J. Postel, 1983):
“One daytime service is defined as a connection based application on TCP. A server listens for TCP connections on TCP port 13. Once a connection is established the current date and time is sent out the connection as a ascii character string (and any data received is thrown away). The service closes the connection after sending the quote.”
Thus, we simply write a program to connect to a server’s port 13, and output the message.