Friday is the deadline to register to vote by mail or online in New York. State law also allows a one-day grace period for in-person registration during presidential election years, and there will be multiple locations on Long Island on Saturday to get your name on the voting rolls in time for Nov. 8.

Please do it. It’s your constitutional right.

For those Long Islanders who remain unmotivated by the 2016 presidential race to register, remember that also on the ballot will be candidates for Congress and the State Legislature.

It’s not difficult. State and local board of elections websites as well as mydmv.ny.gov allow you to complete and submit an online form by 11:59 p.m. Friday. Or you can print the form and mail it, but the postmark must meet the same deadline.

These forms also can be used to change party registration. The deadline to vote in 2017 primary races is Friday, too.

On Saturday, in-person registration is available at Roosevelt Field mall, and at some parks and community centers in Nassau. In Suffolk, applications can be filled out at six town halls, as well as a few American Legion halls. Please go to newsday.com/opinion for a list of sites and times.

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Early voting is already underway in 37 states, often through the use of absentee ballots. In New York, those already registered to vote but who will be away from their counties on Election Day have until Nov. 1 to request a ballot by mail. In-person requests, as well as returning your ballot on the spot, can be done at county board of elections offices from now until Monday, Nov. 7.

Your vote is your voice, and it can make a difference.

— The editorial board