I booked 9pm for a 10am-5pm room the next day. No problem. I use Dayuse often. Dayuse will always accept your booking but sometimes the actual hotel may not have noticed the booking by say 9.30 on the day (which is often when I/ we arrive) and we are simply invited to have a coffee at the bar while the room is checked/ prepared. All very pleasant and civilised.
I guess you could book for the same day. You can leave when you like in the booked time slot. I (we) usually leave at 3pm. Just hand in the room card at Reception with a cheery "Thank You, see you in a couple of weeks". Frankly the hotel (Ibis generally) does not give a damn so long as they get the £ for the room.