Lunar ↔ Gregorian for the diaspora.

Which lunar calendar does this converter use?

This English view converts dates with lunar-javascript's Chinese lunar-calendar datafor 1900–2099. It also shows a dual-calendar month, selected festival markers, leap months, sexagenary labels and solar terms. It does not calculate a separate Korean, Vietnamese or historical Japanese lunar calendar. Those calendars can place a date or even a leap month differently. The Korean view instead uses Korean-calendar data through its stated 2050 boundary, then falls back to the Chinese calculation.

Find a Chinese-calendar Lunar New Year

Choose Lunar → Gregorian, enter the lunar year and 1/1, and leave “Leap month” off. For 2027 this English view returns February 6. The Korean calendar puts Seollal on February 7, according to the Korea Astronomy and Space Science Institute's 2027 calendar. Do not use the English result as a date for Seollal or Tết without checking the appropriate country's calendar and the event organizer.

What the festival markers mean

The month view marks cultural dates on the Chinese-calendar basis used here, not public holidays for every East Asian country. It includes Lunar New Year (1/1), Lantern Festival (1/15), Dragon Boat Festival (5/5), Qixi (7/7), Mid-Autumn Festival (8/15), Double Ninth (9/9), and Qingming near the solar term. Similar celebrations in Korea and Vietnam may have different Gregorian dates. US federal holidays are outside this calendar.

Leap-month birthdays need a calendar and a family convention

A lunisolar year sometimes repeats a month. Check “Leap month” only if the source date explicitly says leap month. The Chinese and Korean calendars can disagree about which month is repeated. The multi-year birthday table leaves a year blank when that lunar date does not exist; it does not invent a replacement birthday. Ask your family which day to observe in years without the same leap month, and verify important dates against a relevant official calendar.

Year, month and day labels are not a Four Pillars reading

The result shows a year label from the converted Chinese lunar year, plus month and day stem–branch labels. The English labels include Chinese characters and Pinyin. The “Next solar term” card gives a calendar date, but this page does notcalculate a second year label using Lichun or compare different BaZi year-boundary rules. It also does not ask for a birth time. Treat these as calendar labels, not a personal astrological interpretation.

Check the basis before adding a date to your calendar

For a Chinese-calendar family date, convert each target year separately. A lunar 1/1 or 8/15 usually lands on a different Gregorian date the following year; copying one Gregorian date into an annually repeating event will not preserve its lunar meaning. The ICS and CSV downloads contain calculated dates for the years you select, not a rule that automatically updates forever. For Korean family dates, use the Korean view and compare important plans with the official Korean calendar. For a Japanese local festival or a Vietnamese observance, confirm the date with the organizer or an appropriate local source.

FAQ