The Irish border
There is the possibility that there could be two different time zones on the island of Ireland by October 2019 under a new proposal announced yesterday by the European Commission.
The new proposal was announced by the European Commission's President Jean-Claude Juncker, would end the practice of EU countries alternating between summer time and winter time every year.
Under the plan, the last mandatory change to summertime would happen on Sunday, March 31, 2019.
It would need to be approved by the European Council and the European Parliament and member states would be required to choose whether they would permanently remain in summer time or winter time.
Those who choose to remain in winter time will make the final clock change at the end of October 2019.
The UK, which is due to leave the EU on Friday, March 29, 2019, will continue to change between Greenwich Mean Time and British Summer Time every year.
Speaking to RTE, Fianna Fáil’s Brexit spokesperson Lisa Chambers that two time zones existing on the island of Ireland would be "totally impractical".
She said: "I would hope that with something like this there would be a common sense approach and no time difference on the island.
"This is precisely the kind of thing that could get lost in the noise of the other, bigger Brexit issues to be resolved and while most people will laugh at the suggestion of such a time difference on the island of Ireland, it would not be funny if it were to actually transpire."
Sinn Féin Brexit spokesperson told RTE that it was a "ludicrous situation".