Students are asking the government to hold the same-sex marriage referendum before next May.

The Union of Students in Ireland (USI) says that most college-goers will be too busy with exams by then and want to go to the polls in April.

The Cabinet agreed last month to hold the ballot in early May, however a specific date has yet to be chosen.

The Taoiseach Enda Kenny has said he will personally appeal for a yes vote in public debates on the issue.

Mr Kenny has also confirmed he will take part in live debates ahead of the referendum.

"I've given a very clear answer to that question and I've made it very clear to Deputy Buttimer, who is the chair of the group here in Fine Gael, that I will be very happy to campaign for a Yes vote when the referendum is held in the month of May," he said.

Laura Harmon is the president of the USI.

She says the timing is crucialbut that a change of date will not sway the ballot.