Australia was set to hold the men's T20 World Cup in October-November this year after successfully staging the standalone women's tournament that culminated in a record-breaking final at the MCG in March.
Adelaide Oval was scheduled for six group stage matches and a coveted semi-final, but the outbreak of the COVID-19 pandemic has forced the ICC to postpone the competition, allowing the Indian Premier League to occupy the vacant window having also been delayed.
All fans who purchased tickets to the ICC Men's T20 World Cup 2020 will be automatically refunded in full. Further details are available here.
India will remain hosts of the 2021 men's T20 World Cup in October-November, as planned, before staging the men's 50-over World Cup in 2023.
In addition, the women's 50-over World Cup, which was to be held in New Zealand from February 6 to March 7 next year, has been postponed to February-March 2022.
An "extensive contingency planning exercise" was completed by the ICC, which considered the "health, cricket and commercial impact of COVID-19 around the world".
"Over the last few months as we have considered how we return to staging global events, our number one priority has been to protect the health and safety of everyone involved in ICC events," said ICC acting chairman Imran Khwaja.
"The decisions the Board have taken today are in the best interests of the sport, our partners and importantly our fans.
"I’d like to thank our partners at the BCCI, Cricket Australia and Cricket New Zealand as well as the Australian and New Zealand governments for their continued support and commitment to a safe return to ICC events."
The IPL is set to be held in the UAE from September 19 to November 10, with 17 Australians contracted to play before returning home for the domestic summer.
All teams that qualified for the 2020 men's T20 World Cup will participate in the 2021 edition, with a new qualifying process to be determined for the 2022 event.
The delay of the women's one-day World Cup makes 2022 a big year for the women's game.
Not only with the 50-over showpiece be up for grabs but also a T20 World Cup in South Africa and Commonwealth Games gold in Birmingham.
The qualification event to determine the three remaining teams for the women's one-day World Cup will now be staged in 2021.
Meanwhile, England's white-ball tour to India, scheduled for September-October this year, has been postponed until early 2021.