[ESMA35-43-349 MiFID II Q&A Ch 2 Q&A nr. 2]

Yes. The suitability report should contain the date and time of the day when the advice was given to the client. Firms should also keep a record of the date and time when the suitability report was provided to the client (if these dates differ, as may be the case when the interaction with the client occurs through a means of distance communication). 

Finally, firms must keep the respective suitability report according to MiFID II record keeping requirements. 

To fulfil these reporting and documentation requirements, it may be useful to timestamp the suitability reports. However, if firms comply with the above in any other way, a timestamp may not be necessary.