Everyday knowledge & free tools
Chinese lunar calendar, birthday & zodiac tools
From a lunar birthday to a family gathering. Practical explanations and free tools for the dates that matter.
Small tools. Clear answers.
Choose a task, check the rules and find your answer.
Gregorian–Chinese lunar converter
Convert complete dates in both directions, with leap-month checks.
Use this toolChinese lunar birthday finder
Find every exact lunar birthday in one or several Gregorian years.
Use this toolChinese zodiac lookup
Use the full birth date and the Chinese Lunar New Year boundary.
Use this toolAge & birthday countdown
Calculate completed years and the next Gregorian anniversary.
Use this toolDays between dates
Compare elapsed days with counting both endpoints.
Use this toolAdd or subtract dates
Move forward or backward by calendar days or weeks.
Use this toolGregorian–Chinese lunar calendar
Browse monthly date comparisons for 2026–2028.
Use this toolChinese festival dates
Check dates and countdowns; public holidays are a separate matter.
Use this toolBaby's month & 100-day milestones
Choose the counting convention before planning a milestone.
Use this toolFamily wedding checklist
Choose tasks, assign responsibilities and print your own list.
Use this toolRead guide
Know the date. Understand the reason.
Does a festival date mean a public holiday? Check the distinction
Separate a Chinese lunar festival's Gregorian date from official holiday arrangements and your actual gathering or booking date.
Read guideA leap-month birthday when that leap month is missing
Keep the original leap-month birthday intact, check exact annual matches, and record a separate family celebration decision when no match exists.
Read guideWhat happens to a lunar day-30 birthday in a 29-day month?
Check the actual Chinese lunar month length, distinguish a missing day from a missing month, and keep celebration choices separate from exact conversion.
Read guideWhy a lunar birthday can occur twice in one Gregorian year
Understand the search window, verify both lunar years, and distinguish annual birthday matches from the next reminder or a person's age.
Read guideTraditions vary. Make room for what works for your family.