While the 2019 World Aquatics Championships in Gwangju, South Korea take place July 12-28, the swimming events are scheduled for the second week, from Sunday 21st to Sunday 28th July.
Here's a look at the finals happening on each day as the 18th FINA World Championships unfold.
All times listed are local to Gwangju, which is UTC+9.
Sunday, July 21
22:00-22:15
400m Freestyle Men
2016 Olympic Champion: Mack Horton (AUS)
2017 World Champion: Sun Yang (CHN)
400m Freestyle Women
2016 Olympic Champion: Katie Ledecky (USA)
2017 World Champion: Katie Ledecky (USA)
4x100m Freestyle Relay Men
2016 Olympic Champion: Caeleb Dressel, Michael Phelps, Ryan Held, Nathan Adrian (USA)
2017 World Champion: Caeleb Dressel, Townley Haas, Blake Pieroni, Nathan Adrian (USA)
4x100m Freestyle Relay Women
2016 Olympic Champion: Emma McKeon, Brittany Elmslie, Bronte Campbell, Cate Campbell (AUS)
2017 World Champion: Mallory Comerford, Kelsi Worrell, Katie Ledecky, Simone Manuel (USA)
Monday, July 22
20:00-22:00
100m Breaststroke Men
2016 Olympic Champion: Adam Peaty (GBR)
2017 World Champion: Adam Peaty (GBR)
100m Butterfly Women
2016 Olympic Champion: Sarah Sjostrom (SWE)
2017 World Champion: Sarah Sjostrom (SWE)
50m Butterfly Men
Event not featured in Olympic programme
2017 World Champion: Ben Proud (GBR)
200m Individual Medley Women
2016 Olympic Champion: Katinka Hosszu (HUN)
2017 World Champion: Katinka Hosszu (HUN)
Tuesday, July 23
20:00-22:20
200m Freestyle Men
2016 Olympic Champion: Sun Yang (CHN)
2017 World Champion: Sun Yang (CHN)
1500m Freestyle Women
Event will make its Olympic debut for women at Tokyo 2020
2017 World Champion: Katie Ledecky (USA)
100m Backstroke Women
2016 Olympic Champion: Katinka Hosszu (HUN)
2017 World Champion: Kylie Masse (CAN)
100m Backstroke Men
2016 Olympic Champion: Ryan Murphy (USA)
2017 World Champion: Xu Jiayu (CHN)
100m Breaststroke Women
2016 Olympic Champion: Lilly King (USA)
2017 World Champion: Lilly King (USA)
Wednesday, July 24 - Exactly one year to go until Tokyo 2020!
20:00-22:40
800m Freestyle Men
Event will make its Olympic debut for men at Tokyo 2020
2017 World Champion: Gabriele Detti (ITA)
200m Freestyle Women
2016 Olympic Champion: Katie Ledecky (USA)
2017 World Champion: Federica Pellegrini (ITA)
200m Butterfly Men
2016 Olympic Champion: Michael Phelps (USA)
2017 World Champion: Chad le Clos (RSA)
50m Breaststroke Men
Event not featured in Olympic programme
2017 World Champion: Adam Peaty (GBR)
4x100m Medley Relay Mixed
Event will make its Olympic debut at Tokyo 2020
2017 World Champion: Matt Grevers, Lilly King, Caeleb Dressel, Simone Manuel (USA)
Thursday, July 25
20:00-22:30
200m Butterfly Women
2016 Olympic Champion: Mireia Belmonte (ESP)
2017 World Champion: Mireia Belmonte (ESP)
100m Freestyle Men
2016 Olympic Champion: Kyle Chalmers (AUS)
2017 World Champion: Caeleb Dressel (USA)
50m Backstroke Women
Event not featured in Olympic programme
2017 World Champion: Etiene Medeiros (BRA)
200m Individual Medley Men
2016 Olympic Champion: Michael Phelps (USA)
2017 World Champion: Chase Kalisz (USA)
4x200m Freestyle Relay Women
2016 Olympic Champion: Allison Schmitt, Leah Smith, Maya DiRado, Katie Ledecky (USA)
2017 World Champion: Leah Smith, Mallory Comerford, Melanie Margalis, Katie Ledecky (USA)
Friday, July 26
20:00-22:30
100m Freestyle Women
2016 Olympic Champion: Penny Oleksiak (CAN) / Simone Manuel (USA)
2017 World Champion: Simone Manuel (USA)
200m Breaststroke Women
2016 Olympic Champion: Rie Kaneto (JPN)
2017 World Champion: Yuliya Efimova (RUS)
200m Backstroke Men
2016 Olympic Champion: Ryan Murphy (USA)
2017 World Champion: Evgeny Rylov (RUS)
200m Breaststroke Men
2016 Olympic Champion: Dmitriy Balandin (KAZ)
2017 World Champion: Anton Chupkov (RUS)
4x200m Freestyle Relay Men
2016 Olympic Champion: Conor Dwyer, Townley Haas, Ryan Lochte, Michael Phelps (USA)
2017 World Champion: Stephen Milne, Nicholas Grainger, Duncan Scott, James Guy (GBR)
Saturday, July 27
20:00-22:40
50m Butterfly Women
Event not featured in Olympic programme
2017 World Champion: Sarah Sjöström (SWE)
50m Freestyle Men
2016 Olympic Champion: Anthony Ervin (USA)
2017 World Champion: Caeleb Dressel (USA)
100m Butterfly Men
2016 Olympic Champion: Joseph Schooling (SGP)
2017 World Champion: Caeleb Dressel (USA)
200m Backstroke Women
2016 Olympic Champion: Maya DiRado (USA)
2017 World Champion: Emily Seebohm (AUS)
800m Freestyle Women
2016 Olympic Champion: Katie Ledecky (USA)
2017 World Champion: Katie Ledecky (USA)
4x100m Freestyle Relay Mixed
Event not featured in Olympic programme
2017 World Champion: Caeleb Dressel, Nathan Adrian, Mallory Comerford, Simone Manuel (USA)
Sunday, July 28
20:00-22:40
1500m Freestyle Men
2016 Olympic Champion: Gregorio Paltrinieri (ITA)
2017 World Champion: Gregorio Paltrinieri (ITA)
50m Breaststroke Women
Event not featured in Olympic programme
2017 World Champion: Lilly King (USA)
50m Freestyle Women
2016 Olympic Champion: Pernille Blume (DEN)
2017 World Champion: Sarah Sjöström (SWE)
50m Backstroke Men
Event not featured in Olympic programme
2017 World Champion: Camille Lacourt (FRA)
400m Individual Medley Women
2016 Olympic Champion: Katinka Hosszú (HUN)
2017 World Champion: Katinka Hosszú (HUN)
400m Individual Medley Men
2016 Olympic Champion: Kosuke Hagino (JPN)
2017 World Champion: Chase Kalisz (USA)
4x100m Medley Relay Women
2016 Olympic Champion: Kathleen Baker, Lilly King, Dana Vollmer, Simone Manuel (USA)
2017 World Champion: Kathleen Baker, Lilly King, Kelsi Worrell, Simone Manuel (USA)
4x100m Medley Relay Men
2016 Olympic Champion: Ryan Murphy, Cody Miller, Michael Phelps, Nathan Adrian (USA)
2017 World Champion: Matt Grevers, Kevin Cordes, Caeleb Dressel, Nathan Adrian (USA)
CLOSING CEREMONY