| 1 Jan, 2024 (Mon) | New Year's Day | National holiday |
| 1 Jan, 2024 (Mon) | January 1 Bank Holiday | Bank holiday |
| 2 Jan, 2024 (Tue) | January 2 Bank Holiday | Bank holiday |
| 3 Jan, 2024 (Wed) | January 3 Bank Holiday | Bank holiday |
| 8 Jan, 2024 (Mon) | Coming of Age Day | National holiday |
| 3 Feb, 2024 (Sat) | Setsubun | Observance |
| 11 Feb, 2024 (Sun) | National Foundation Day | National holiday |
| 12 Feb, 2024 (Mon) | National Foundation Day observed | National holiday |
| 14 Feb, 2024 (Wed) | Valentine's Day | Observance |
| 23 Feb, 2024 (Fri) | Emperor's Birthday | National holiday |
| 3 Mar, 2024 (Sun) | Dolls' Festival/Girls' Festival | Observance |
| 20 Mar, 2024 (Wed) | Spring Equinox | National holiday |
| 20 Mar, 2024 (Wed) | March Equinox | Season |
| 29 Apr, 2024 (Mon) | Shōwa Day | National holiday |
| 3 May, 2024 (Fri) | Constitution Memorial Day | National holiday |
| 4 May, 2024 (Sat) | Greenery Day | National holiday |
| 5 May, 2024 (Sun) | Children's Day | National holiday |
| 6 May, 2024 (Mon) | Children's Day observed | National holiday |
| 12 May, 2024 (Sun) | Mother's Day | Observance |
| 21 Jun, 2024 (Fri) | June Solstice | Season |
| 7 Jul, 2024 (Sun) | Star Festival | Observance |
| 15 Jul, 2024 (Mon) | Sea Day | National holiday |
| 6 Aug, 2024 (Tue) | Hiroshima Memorial Day | Observance |
| 9 Aug, 2024 (Fri) | Nagasaki Memorial Day | Observance |
| 11 Aug, 2024 (Sun) | Mountain Day | National holiday |
| 12 Aug, 2024 (Mon) | Day off for Mountain Day | National holiday |
| 16 Sep, 2024 (Mon) | Respect for the Aged Day | National holiday |
| 22 Sep, 2024 (Sun) | Autumn Equinox | National holiday |
| 23 Sep, 2024 (Mon) | September Equinox | Season |
| 23 Sep, 2024 (Mon) | Autumn Equinox observed | National holiday |
| 14 Oct, 2024 (Mon) | Sports Day | National holiday |
| 3 Nov, 2024 (Sun) | Culture Day | National holiday |
| 4 Nov, 2024 (Mon) | Culture Day observed | National holiday |
| 15 Nov, 2024 (Fri) | 7-5-3 Day | Observance |
| 23 Nov, 2024 (Sat) | Labor Thanksgiving Day | National holiday |
| 21 Dec, 2024 (Sat) | December Solstice | Season |
| 25 Dec, 2024 (Wed) | Christmas | Observance |
| 31 Dec, 2024 (Tue) | December 31 Bank Holiday | Bank holiday |
