The New York Times kept track of speaking time during the only scheduled debate between Vice President Kamala Harris and former President Donald J. Trump. We broke it down by topic and measured how much time the candidates spent attacking each other.

Minutes of speaking time and length of attacks

The debate was supposed to last 90 minutes. Here’s how the candidates used their time on the microphone.

It was the first direct confrontation between Ms. Harris and Mr. Trump. It was also the first debate since President Biden dropped out of the race after his disastrous performance with Mr. Trump in June.

With just 56 days to go until Election Day, the debate stage offered Ms. Harris an important opportunity for voters to get to know her. In the latest New York Times/Siena College national poll, 28 percent of likely voters said they needed to know more about Ms. Harris; just 9 percent said the same about Mr. Trump.

Which topics were discussed the most?

How much time candidates spent speaking about 15 key issues and how much time they spent attacking their opponents on those issues, sorted by total time spent.

How Harris’s performance differed from Biden’s

Percentage of time Ms. Harris spent on 15 key issues, compared to Mr. Biden during the June presidential debate.

How tonight’s attacks compare to previous debates

Percentage of time candidates spent attacking each other’s policies and character.