Sixteen of the scheduled 64 first round matches at Wimbledon were cancelled on Monday as the tournament's return after two years suffered a soggy start.
Play on the All England Club's outside courts had been due to get under way at 11:00am (1000 GMT).
However, that start time was constantly revised with 3:30pm (1430GMT) the latest start time set by organisers.
Novak Djokovic got his title defence under way on a covered Centre Court at 1:30pm (1230 GMT) against British wildcard Jack Draper.
Wimbledon in 2020 was cancelled due to the Covid-19 pandemic.