Hi there, not sure if this is the right forum, Mods, feel free to move it. I've got a Cisco IP Phone 7940 from work for my house so I can connect to our Asterisk PBX, it works perfectly, etc, etc.
The date command on Linux can do more than display the current date and time. For example, it can provide dates in the past and future and adjust the date output to suit your need for details.