Lunar Calendar
Chinese Lunar Date Converter
Find the Chinese lunar date for a Gregorian date, or convert a lunar date back to the Gregorian calendar.
Use the tool
Fill in only the planning details needed for this calculation. Do not enter private medical, financial, legal, or identification data.
Methodology
How this tool works
Dates use your selected timezone. Conversion distinguishes leap months from ordinary months, so the lunar year, month, day, and leap-month choice must all match.
Cultural variation notes
- Temple calendars may label festivals by local timezone and local convention.
- A lunar date can fall on different Gregorian dates across timezones near midnight.
- Leap months are not interchangeable with ordinary months unless a family or temple says so.
FAQ
Frequently asked questions
Does this support leap months?
Where the runtime exposes a leap marker, Bai Bai includes it and can search for it. Always verify important temple dates with the temple calendar.
Why ask for timezone?
A Gregorian date is interpreted at local noon in the selected timezone to avoid accidental date shifts.
Can I convert historical dates?
The tool works best for modern planning dates. Historical calendar conversion can involve reforms and local records outside this tool's scope.