Kelly Lawler

USA TODAY

Inauguration Day this year happens to fall on a Friday, which will be the first day Donald Trump takes the job as president. But that might not be "Day One" of his presidency.

On Tuesday's Late Show, Stephen Colbert poked fun at an interview Trump gave to the Times of London where he said he would want to get down to work on Monday and not over the weekend, because he doesn't “want to be signing and get it mixed up with lots of celebration.”

“I don’t understand how it’s that confusing,” Colbert said at the beginning of his monologue. “How do you mix up signing with celebrating? ‘I’m sorry, I thought I was giving out an autograph; instead, I accidentally gave back the Louisiana Purchase.'”

"He apparently thinks the president gets Saturdays and Sundays off," Colbert added. "Instead of Hail to the Chief, it’s going to be Everybody’s Working For the Weekend."

Watch the full monologue below.

Donald Trump: I'll offer deals to Britain, Russia