Perpetual Calendar
Lunar dates, solar terms, holidays & workday adjustments
About This Tool
Perpetual Calendar helps you lunar dates, solar terms, holidays & workday adjustments. Common searches include perpetual calendar, lunar calendar, solar terms, making it useful for quick browser-based processing and immediate results.
Common Use Cases
- Perpetual Calendar：Look up dates, lunar dates, and solar terms
- Perpetual Calendar：Plan holidays, adjusted workdays, and projects
- Perpetual Calendar：Check a month or a full year quickly
Practical Tips
- For official schedules, confirm against your employer or government source
- When switching years, make sure the holiday data matches the selected year
Features
- ✓Shows lunar dates and sexagenary cycle
- ✓Marks all 24 solar terms
- ✓Highlights public holidays and workday adjustments
- ✓Month view and year overview modes
- ✓Click any day for full details
How to Use
- 1Defaults to current month
- 2Click arrows to navigate months
- 3Click "Year View" for full year overview
- 4Click any date to see details
- 5Click "Today" to return to current month
FAQ
Is holiday data accurate?
Holiday data is fetched from an official source in real time. If unavailable, built-in static data covering 2024–2027 is used as fallback.
Is the lunar calendar accurate?
Yes. The lunar-javascript library performs all calculations locally in the browser with high accuracy.
Which years are supported?
Lunar dates and solar terms work for any year. Holiday/adjustment data covers 2024–2027 and is updated annually.