That thing where you're waiting and waiting looking forward to and impossibly excited about an event.

Say an event that lasted six days.

And say those days happened to be the 6th to the 11th August.

And then you wake up one morning and it's the 12th.

Worse still, the day after that is not only the 13th but it's a Monday and you have to go to work and normal service must resume.

That.