The 2018 Ulster SFC will start on 13 May with Donegal's preliminary round game with Cavan while the final is on Sunday, 24 June.
The opening quarter-final takes place on 19 May and sees Fermanagh take on Armagh.
Holders Tyrone face Monaghan the following day and then it is Down v Antrim (26 May) and Donegal/Cavan v Derry (27 May).
The semi-finals will be played on 3 and 10 June.
The first semi-final is Fermanagh/Armagh v Tyrone/Monaghan followed by Donegal/Cavan/Derry v Down/Antrim a week later.
Venues and times for the fixtures have yet to be confirmed.