I've found how to read the internal clock value, using python function timeNow= time.time() My raspberry is not connected to WIFI or internet but it could receive an correct time value from UDP data packets at least once a day. I've not found how to set the internal time clock counter from my python...
I'm quite new to raspberry world. I've been programming in Assembler and C on many different platform.
Right now I0m using an Pi3 + Raspberry for different HMI interface as home case studies.
Thanks for support us !!!