Chicago residents who have not yet registered to vote have just a few hours left to do so if they want to help pick a new mayor.

The traditional deadline for voter registration passed weeks ago, but what’s called “grace period registration” continues through Tuesday.

Chicagoans need to bring two forms of identification, including one with their current address, to the election board headquarters downtown. Registrations will be accepted until 6 p.m., according to election board spokesman Jim Allen.

Through Monday, Allen said, 962 people had taken advantage of the grace period. That’s nearly triple the number who did so during the last municipal election, in 2007.

Time is also running out for early voting. That is taking place at 51 locations around Chicago and is open to people who’re already registered but don’t want to vote the old fashioned way, on Election Day. Early voting ends on Thursday.