I put my one night test and go for accommodation, there was an optional box to list a couple other places you will stay that I added in but it did not ask for dates. From US on TR 60
there is no fit to fly. Leaving Thailand is the same process as coming you, you need to see what the entry requirements are for where you’re going as well as the airline.
last year my I took my Covid test 80 hours before my flight but got my result the next day. But as others said check your airlines requirements and also a good idea where your transit is and for how long.