Sun & Moon
Equinox and Solstice Countdown
Count down to the next approximate equinox or solstice.
Open the tool to see results.
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How this tool works
This countdown uses approximate season dates and is intended for everyday learning.
All calculations run in your browser. No account is required, and this static version does not store your inputs.
Why are these approximate?
The exact astronomical time varies by year and requires more precise ephemeris data.