Lunar Calendar HubDates, cycles, seasons & observance
Convert birthdays, verify Chinese New Year, track Li Chun, understand leap months and the 24 Solar Terms, and see how lunar–solar timing supports BaZi, Feng Shui, festivals, and regional observance.
The calendar principle
曆Moon, Sun, season, context.
Accurate work begins by knowing which calendar boundary the question actually uses.
Why this hub exists
One date can belong to several timing systems.
The Chinese calendar coordinates lunar months with the solar year. BaZi relies heavily on solar terms, while festivals and observances may follow lunar dates. Thai lunar usage introduces its own local conventions.
This hub separates those layers so conversion, charting, research, and cultural observance do not get mixed into one generic “lunar date.”
For BaZi year boundaries, verify Li Chun. Chinese New Year is important—but it is not the same boundary.
Live converters
Start with the date you have.
Use the converter that matches the calendar tradition and output you need.
Mini Lunar Converter
Convert dates in seconds with weekday and leap-month handling plus clean, copyable output.
Thai Lunar Converter
Use a localized conversion workflow aligned to Thai lunar usage and holiday context.
Core articles
Build the calendar foundation.
Clear explainers remove common confusion and standardize your workflow.
What Is the Lunar Calendar?
Origins, month and day logic, leap months, and why the calendar still matters.
Lunar vs. Solar Calendar
Key differences, hybrid use, and the shortcuts that make apps inaccurate.
Leap Months Explained
Why leap months occur and what they mean for birthdays and festivals.
Gregorian ↔ Lunar
A step-by-step converter walkthrough, including important edge cases.
Li Chun
The BaZi year boundary, why it differs from Chinese New Year, and how to verify it.
24 Solar Terms
Seasonal markers from Beginning of Spring to Major Cold.
Lunar Festivals
Qingming, Mid-Autumn, Double Ninth, Ghost Festival, and their calendar context.
Why BaZi Uses a Hybrid
How solar terms and lunar structure work together in accurate charting.
Key tables & references
Production-ready lookups.
Chinese New Year Dates · 1550–2650
A long-range table with notes for edge years and BaZi alignment.
Li Chun Reference
Confirm the correct year boundary for charts, reports, and calculators.
Months & Festivals Quick Reference
A single clean table for fast lookup. Marked as coming soon on the source hub.
Accuracy workflow
Resolve the calendar before interpreting the date.
A reliable sequence prevents the most common boundary, leap-month, and cultural-context errors.
Choose your next step
Convert, learn, then apply.
Calendar clarity
Use the right boundary for the right question.
Lunar dates, solar terms, festivals, and BaZi timing belong to a connected system—but they are not interchangeable.