Apart from monthly observations, there are 2 other types of non-annual festivals: those occuring every four years (the Pythian games), and those occuring every eight years (i.e on The Great Year ). These appear below.
The four year cycle
| Nth Hemisphere (~July) | Sth Hemisphere (~January) | Great Year? |
|---|---|---|
| 2023 | 2024 | ✔︎ |
| 2027 | 2028 | |
| 2031 | 2032 | ✔︎ |
| 2035 | 2036 | |
| 2039 | 2040 | ✔︎ |
| 2043 | 2044 | |
| 2047 | 2048 | ✔︎ |
| 2051 | 2052 | |
| 2055 | 2056 | ✔︎ |
| 2059 | 2060 |
See also The Great Year