The Suite Life on Deck, Season 1

Tutweiller:
Has anyone ever heard of the International Dateline?

[Cody and Bailey raise their hands.]

Woody:
What you say to a French babe so she'll go out with you?

Bailey:
No. It's an imaginary line created in 1884, to the east of which the date is a day earlier than it is to the west.

Cody:
So when you cross the dateline you have to turn your clocks back 24 hours, a full day.

Tutweiller:
Correct. [claps] Yay! Which is what we are going to do tonight.

Zack:
That works for me. Because if tomorrow is going to be today again, then today is actually yesterday, which means that yesterday's homework isn't due today, it's really due... tomorrow!

Tutweiller:
In other words, you didn't do your homework?

Zack:
Yet.