Trouble installing a RTC - Real Time Clock

Hello All!

I am having trouble getting a RTC installed and working on my RPI project. I have searched the forum and it has turned up very little. I do see some have an RTC working…

SBC - RPi 3 Model B (armv71)
DietPi v6.8

The RTC is from PiFace (not sure which chip) You can find the original script that comes with the RTC at the link. There maybe a conflict with the script and the way DietPi deals with the services.

If anyone could share which RTC they are using with ease would be nice!

Anyways, I would appreciate a little guidance.

Thank you