Chinese Lunar Date Converter: Gregorian and Leap Months
A Chinese lunar date needs a year, month, day and leap-month flag. Convert both directions here; a regular month and its leap counterpart are different dates.
Lunar 2026 · Month 9 · Day 3
二〇二六年九月初三
Leap months
A leap month repeats a month number. When converting from the lunar calendar, select the leap flag only when that lunar year contains the repeated month you need.
Birth-chart inputs
Zi Wei Dou Shu uses lunar month and day. BaZi uses solar-term months. Converting a date gives the calendar coordinate; it does not change which month convention a chart follows.