Hi salamex,
Thank you, this query is very similar to my first query and it works great if the car is in "service/shop" on the same day, the problem i ran into after doing some validation is that it excludes cars that span more than one day.
That is because the "between" join doesn't work example:
same day : 08:00 - 13:00 (8,9,10,11,12,13)
different day: 21:00 - 03:00 (null)
i think i'll just need to do 2 queries but still working it out.