That's the only reason I've ever used the tonight's the night, for clients that don't have 8 hours to wait to wash off. I suggest getting tonight's the night done 24 hours before the occasion and wash off after 3 hours.Tonight's the night is Sienna X's version of a fast/rapid tan.
The rapid or fast part of these tans is how qhickly you can wash the guide off NOT how quickly you will see your full colour.
These fast/rapid tans need to be applied a full 24 hours before the client needs their tan.
So long as the above is known and taken into account then the fast/rapid tans have their place and are great for anyone (like me) who doesn't like to keep the solution on for 6-8 hours or for those clients who are so busy that they don't have time to keep a 6-8 hour tan on.