Nokia 105 RM908 extract messages date and time from HEX

Dear all,

I would like to ask for help,  trying to extract specific details such as the date and time of SMS's using a hex approach. 

Chip-Off was done an old mobile phone I used to own (Nokia 105 rm-908) an experiment that may contribute to my studies(mobile is in an unrepairable state).

When analyzing the flash dump in HEX, I found the message content together with the number it was sent to but I failed in retrieving the date and time.

Does anyone have any guidelines to follow in an attempt to try and output the date and time? The date was never set on the device so sadly I have no idea where to look for.  An attempt to read a set of bytes was done but I am getting a bizarre date.