The Games begin on 23 July with the opening ceremony at the Olympic Stadium in Tokyo, and end on 8 August with the closing ceremony at the same venue.
But on the two days before the official start – on 21 and 22 July – there will be some team sport matches played.
These are known as “non-medal” or “competition” events as they won’t result in a medal ceremony.
Both men’s and women’s football matches are on these days, as well as baseball and softball fixtures.
The Paralympic Games are being held straight after the Olympics from 24 August to 5 September.
This year’s Games are still being called the Tokyo 2020 Olympic Games for marketing and branding purposes, even though they’re being held in 2021. The same thing happened with the European Championship that concluded at Wembley earlier this month – it kept the Euro 2020 moniker.
What time can I watch them?
Japan is eight hours ahead of the UK, so – much like the 2002 World Cup, if you can remember back that far – most of the events will be happening between midnight and 3pm UK time (8am and 11pm local time).
Some of the longer events, such as the marathons, triathlons and race walks, will start slightly earlier in the day.
Where are they being held?
Most of the events are being held in Tokyo, with 25 venues across the city.
The prefectures of Chiba and Saitama in the Greater Tokyo Area are also hosting the Games.
Outside of the capital, there are venues on the island of Hokkaido, Fujisawa, Yokohama, Izu, Fukushima, Miyagi and Kashima, making 41 in total.
Read on for a list of what sports are being played where.
For the vast majority of sports, there won’t be any spectators in the stands.
Foreign supporters had already been banned from attending the Games, but earlier this month Japanese and Olympic officials confirmed that local fans would not be allowed to go to any events in or near Tokyo.
A state of emergency is in place across the Greater Tokyo Area between 2 July and 22 August, banning large gatherings and bars and restaurants from serving alcohol. Drinking venues must also close at 8pm.
But Japanese spectators will be allowed to attend events outside Tokyo – across the other host cities – but only with 50% capacity or up to 10,000 people.
Olympic officials have said 26 sessions will be open to fans across venues in Fukushima, Miyagi and the Shizuoka regions.
These events include football, baseball/softball, cycling and mountain biking.
When should I watch Team GB and who should I look out for?
This year Team GB is made up of 375 athletes, including 200 women and 175 men. There are also 22 reserves.
It is the first time in 125 years that Team GB has fielded more female athletes than male ones.
At the last Games in Rio in 2016, they won 67 medals, including 27 golds, 23 silvers and 17 bronzes.
They came second only to the US on the medal table, who won 121 in total and 46 golds.
Here is a rundown of the top events for Great Britain:
There are two big names to look out for on Team GB’s equestrian team this year.
On Tuesday 27 July, 54-year-old Carl Hester will compete in his sixth Olympic dressage event.
He’s the oldest member of Team GB and will be vying for a medal from 9.30am.
The next day – Wednesday 28 July – Team GB’s Charlotte Dujardin will debut a new horse and will try to bag her own dressage medal from 9.30am.
Almost 10 years ago at London 2012, all eyes were on Sir Mo Farah as he became the first Briton to win a gold for the 10,000m.
In June this year he failed to qualify for Tokyo 2020.
Instead Mark Scott and Sam Atkin will be competing, so watch out for them from 12.40pm on Friday 30 July.
Britain’s Dina Asher-Smith will take part in the women’s 100m final at 1.50pm on Saturday 31 July.
She’ll be chasing Jamaica’s Shelly-Ann Fraser-Pryce, who beat her at the World Championships in 2019.
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