The New York City audience was stunned when Bill de Blasio gave his reason for being so late with his endorsement of Hillary Clinton for president.

He was running on “CP time.”

The pair appeared together Saturday night.

“I heard my name,” Clinton said as she wandered out onto the stage at about the 8 minute mark of the video. “I just have to say: thanks for the endorsement, Bill. Took ya long enough.”

“Sorry, Hillary,” de Blasio said, “I was running on CP time.”

The crowd immediately gasped, then groaned.

“Cautious politician time,” Hillary interjected. “I’ve been there.”

The Urban Dictionary defines “CP Time” as “Colored Peoples Time.”

NOTE: This is a stereotyping of African Americans/Black People as not punctual/frequently or constantly being late.

2. Time that is kept convenient to one person, but not another, especially in business or personal matters.

So far, it appears Al Sharpton has not condemned de Blasio and Clinton — both of them his friends — for the joke.