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Astral Atlas

農曆 · calendar conventions

Chinese calendar explorer

Look up a recorded civil date, or compare named year boundaries for an exact moment. Keep the calendar reference and the known birth-time precision visible.

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What do you know?

Explore a date

Start with a saved birth or another moment

Enter a date to explore. Copying your saved birth here leaves your profile unchanged.

Use an IANA timezone, for example Asia/Hong_Kong or America/New_York.

Year boundary convention

A single moment can have different year names near Lunar New Year or Li Chun. Choose the reference used by your source.

A convention-aware calendar lookup

Choose a date and an explicit timezone, then inspect the lunar date where it applies and compare the sexagenary year across local civil, Beijing and Lìchūn conventions.