Reki Yoko Heisei 23 (2011)
February 1st, 2010, announced by NAOJ
National Holidays Heisei 23 (2011)
| Name | Date |
|---|
| Ganjitsu | January 1st |
| Seijin no Hi | January 10th |
| Kenkoku Kinen no Hi | February 11th |
| Shunbun no Hi | March 21st |
| Shouwa no Hi | April 29th |
| Kenpou Kinen Bi | May 3rd |
| Midori no Hi | May 4th |
| Kodomo no Hi | May 5th |
| Name | Date |
|---|
| Umi no Hi | July 18th |
| Keirou no Hi | September 19th |
| Shuubun no Hi | September 23rd |
| Taiiku no Hi | October 10th |
| Bunka no Hi | November 3rd |
| Kinrou Kansha no Hi | November 23rd |
| Tennou Tanjou Bi | December 23rd |
| | |
Dates of Sundays Heisei 23 (2011)
| Month | Dates |
|---|
| January | 2 | 9 | 16 | 23 | 30 |
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| February | 6 | 13 | 20 | 27 | |
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| March | 6 | 13 | 20 | 27 | |
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| April | 3 | 10 | 17 | 24 | |
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| May | 1 | 8 | 15 | 22 | 29 |
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| June | 5 | 12 | 19 | 26 | |
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| Month | Dates |
|---|
| July | 3 | 10 | 17 | 24 | 31 |
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| August | 7 | 14 | 21 | 28 | |
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| September | 4 | 11 | 18 | 25 | |
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| October | 2 | 9 | 16 | 23 | 30 |
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| November | 6 | 13 | 20 | 27 | |
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| December | 4 | 11 | 18 | 25 | |
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