Following are National Holidays in Japan in 20211:
| Date | Name |
|---|---|
| January 1 | New Year's Day |
| January 11 | Coming of Age Day 2 |
| February 11 | Foundation Day |
| February 23 | Emperor's Birthday |
| March 20 | Vernal Equinox Day 3 |
| April 29 | Shōwa Day |
| May 3 | Constitution Memorial Day |
| May 4 | Greenery Day |
| May 5 | Children's Day |
| July 22 | Marine Day 4 |
| July 23 | Health and Sports Day 6 |
| August 8 | Mountain Day |
| August 9 | Extra Holiday (Furikae kyūjitsu) |
| September 20 | Respect for the Aged Day 5 |
| September 23 | Autumnal Equinox Day |
| November 3 | Culture Day |
| November 23 | Labor Thanksgiving Day |
2021 July 22 is day before Olympics Opening.
2021 July 23 Olympics Opening - August 8 is Olympics Closing.
Source: https://www.kantei.go.jp/jp/headline/tokyo2020/shukujitsu.html