The second official debate among the eight major Democratic candidates for mayor of New York City takes place Wednesday from 7 to 9 p.m.

The candidates set to attend are Eric Adams, Shaun Donovan, Kathryn Garcia, Raymond J. McGuire, Dianne Morales, Scott M. Stringer, Maya Wiley and Andrew Yang.

The event comes as the contest moves into its final weeks before the June 22 primary, at a crucial time when the dynamics of the race and voter preferences still appear fluid. The first debate was held virtually, and Wednesday’s in-person session will offer clearer opportunities for the candidates to distinguish themselves with standout moments — and to better land the criticisms of one another that they have ramped up in recent weeks.

The state of the race now also looks different in several ways from the last debate.

The campaign of the most left-leaning candidate in the field, Ms. Morales, is facing internal strife and disillusion. And Ms. Garcia, the former sanitation commissioner, has gained traction in the limited polling available, placing her as a front-runner alongside Mr. Yang and Mr. Adams. Other candidates, like Ms. Wiley, are looking to build similar momentum.

Here are some of the ways you can watch and follow the debate:

• Reporters from The New York Times will provide commentary and analysis throughout the evening.

• The first hour of the debate will be televised on WABC Channel 7, with the second hour scheduled for Channel 7.2. Streams will also be available online from ABC 7 New York and Univision.

• The debate will also be carried on cable networks including Optimum on Channel 110; Spectrum on Channel 1240; Verizon Fios on Channel 467; and Comcast on Channels 790.

• Bloomberg Radio New York will stream the debate on 1130-AM. Listeners can also tune in to a broadcast on 92.7 FM from the Spanish-language station WQBU-FM.

• Other streams are expected to be available on YouTube.