I've been searching a bit and not finding the right module.

Which module should I be using to calculate summer and winter solstices, and autumn and spring equinoxes?

That is my main task at the moment, but if there is also a way to calculate Chinese New Year from the same or another module, that will help in a later task.

In reply to Which module for finding Equinoxes and Solstices by mldvx4

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