Categorize time ranges and calculate events within the time period

Dears


I have a list of events (discharging / loading ) with a driver ID per particular event. each event has a date and time . My requirement is to categorize each time in to the time range ( if the date ,time is 07-Jul-19 10:39:22 then time range is 07-jul-19 10:00 - 11:00 ) and within the purticular time range how many events occurred by each driver ID. Appreciate your help. I have attached sample report .

regards
Yklanka