Presidential candidates Donald Trump and Kamala Harris will face off at a debate on Sept. 10. Here's what time it will be in Arizona and how to watch.

Here's what to know about the debate and how to tune in. What time is the debate tonight? The ABC News presidential debate is scheduled for tonight, Tuesday, Sept. 10, at 9 p.m. EDT / 6 p.m. PST ...

— The Democratic presidential debate is 8 p.m. to 10:15 p.m. Eastern time. It is being held in Charleston, South Carolina, and hosted by CBS News and the Congressional Black Caucus Institute.