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The conversion table of the old calendar of one month is displayed from the specified year and month.
When years to be examined are selected and "calculate the old calendar" button is clicked, the conversion table of the solar calendar and the old calendar is displayed.
It is possible to examine it by the six basic labels of the old calendar.
| Solar calendar | A day of the week | -> | Old calendar | Six basic labels | Intercalary month |
|---|---|---|---|---|---|
| July 1, 2021 | Thurs. | May 22, 2021 | Tomobiki | ||
| July 2, 2021 | Fri. | May 23, 2021 | Senbu | ||
| July 3, 2021 | Sat. | May 24, 2021 | Butsumetsu | ||
| July 4, 2021 | Sun. | May 25, 2021 | Taian | ||
| July 5, 2021 | Mon. | May 26, 2021 | Shakkou | ||
| July 6, 2021 | Tues. | May 27, 2021 | Senshou | ||
| July 7, 2021 | Wed. | May 28, 2021 | Tomobiki | ||
| July 8, 2021 | Thurs. | May 29, 2021 | Senbu | ||
| July 9, 2021 | Fri. | May 30, 2021 | Butsumetsu | ||
| July 10, 2021 | Sat. | June 1, 2021 | Shakkou | ||
| July 11, 2021 | Sun. | June 2, 2021 | Senshou | ||
| July 12, 2021 | Mon. | June 3, 2021 | Tomobiki | ||
| July 13, 2021 | Tues. | June 4, 2021 | Senbu | ||
| July 14, 2021 | Wed. | June 5, 2021 | Butsumetsu | ||
| July 15, 2021 | Thurs. | June 6, 2021 | Taian | ||
| July 16, 2021 | Fri. | June 7, 2021 | Shakkou | ||
| July 17, 2021 | Sat. | June 8, 2021 | Senshou | ||
| July 18, 2021 | Sun. | June 9, 2021 | Tomobiki | ||
| July 19, 2021 | Mon. | June 10, 2021 | Senbu | ||
| July 20, 2021 | Tues. | June 11, 2021 | Butsumetsu | ||
| July 21, 2021 | Wed. | June 12, 2021 | Taian | ||
| July 22, 2021 | Thurs. | June 13, 2021 | Shakkou | ||
| July 23, 2021 | Fri. | June 14, 2021 | Senshou | ||
| July 24, 2021 | Sat. | June 15, 2021 | Tomobiki | ||
| July 25, 2021 | Sun. | June 16, 2021 | Senbu | ||
| July 26, 2021 | Mon. | June 17, 2021 | Butsumetsu | ||
| July 27, 2021 | Tues. | June 18, 2021 | Taian | ||
| July 28, 2021 | Wed. | June 19, 2021 | Shakkou | ||
| July 29, 2021 | Thurs. | June 20, 2021 | Senshou | ||
| July 30, 2021 | Fri. | June 21, 2021 | Tomobiki | ||
| July 31, 2021 | Sat. | June 22, 2021 | Senbu |
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