Korean lunar ↔ solar date converter

Convert a solar date to the Korean lunar calendar (음력) or a lunar date to the solar calendar, with leap months. The table shows when the same lunar date falls in each of the next ten years — handy for lunar birthdays and memorial days.

Repeat this lunar date every year in PladayOpens in your browser — no install or sign-up needed.

Which lunar calendar is this?

This converter uses the Korean lunar calendar (음력), computed astronomically for Korea Standard Time (UTC+9) for lunar years 2000 to 2050. It agrees with the Chinese lunar calendar in almost every year, but because the Chinese calendar uses UTC+8, a new moon late in the evening can put a month's first day one day apart — 2027 and 2028 Lunar New Year are examples. For Chinese or Vietnamese dates, confirm with a local calendar.

Leap months

A lunar year has 12 months of 29 or 30 days, about 11 days shorter than a solar year. To stay in step with the seasons, a leap month (윤달) is added roughly every three years. If you ask for a leap month in a year that has none, the converter uses the regular month and says so; day 30 in a 29-day month is moved to day 29.

Never miss a lunar birthday again

Lunar dates move around the solar calendar each year, which is why they are easy to forget. In Pladay you can type “every year on lunar 3/12” (or in Korean, 매년 음력 3월 12일) and the task repeats on the right solar date each year — see repeating tasks. The Anniversaries module also supports lunar birthdays.

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