It could be one of those nights where you're better off staying up rather than setting the alarm early.
Just before 2am, the very impressive duo of Paul O'Donovan and Fintan McCarthy compete in the lightweight double sculls final. They will be hoping to replicate the medal-winning feats of their teammates who took home a stunning bronze in the women's four final.
We also have swimming, judo, sailing, shooting and golf events with the Irish in action throughout the day in Tokyo.
Television coverage starts from 1am on RTÉ2 and RTÉ Player, right through until 3.30pm.
Here are the times to keep an eye out for.
SWIMMING
11.47 Men's 100m butterfly, heat 3 - Shane Ryan
ROWING
00:40 Women's pair, B final - Aileen Crowley, Monika Dukarska
01:00 Women's LW double sculls, B final - Aoife Casey, Margaret Cremen
01.50 Men’s LW double sculls, final – Paul O’Donovan, Fintan McCarthy
02.30 Women’s single sculls, semi-final - Sanita Puspure
GOLF
02.25 & 02.36 tee times Men’s Singles – Rory McIlroy, Shane Lowry
SAILING
04.05 49er, races 5&6 - Sean Waddilove and Robert Dickson
04.15 Laser Radial, Races 7 & 8 – Annalise Murphy
JUDO
04.48 Men’s 100kg – Ben Fletcher
Rd16 from 04.48-05.54 on Mat 1 if qualified
QF from 05.54-06.22 on Mat 1 if qualified
Repechage from 09.34-09.51 on Mat 1 if qualified
SF from 09.51-10.08 on Mat 1 if qualified
Bronze & Gold contests from 10.49-11.20 on Mat 1 if qualified
SHOOTING
01.50 Men’s Trap, qualifying – Derek Burnett