Solar ↔ Lunar Calendar Converter

Convert between solar and lunar calendar dates and check zodiac signs and ganji

Using Korea Astronomy and Space Science Institute's calendar conversion data. (Supported range: Solar 1000-02-13 to 2050-12-31 / Lunar 1000-01-01 to 2050-11-18)

Solar Date
Enter a solar date to convert to lunar
12 Zodiac Animals
Rat
Ox
Tiger
Rabbit
Dragon
Snake
Horse
Sheep
Monkey
Rooster
Dog
Pig
Ganzi (干支)

Heavenly Stems

Earthly Branches

Solar vs Lunar Calendar

Solar Calendar

A calendar based on the Earth's revolution around the sun. A year has 365 days (366 in leap years). The Gregorian calendar is the most widely used solar calendar.

Lunar Calendar

A calendar based on the phases of the moon. A month is about 29.5 days, and a year is about 354 days, about 11 days shorter than the solar year. Most Korean traditional holidays follow the lunar calendar.

Major Lunar Holidays

  • • Lunar New Year: 1st day of 1st month
  • • Daeboreum: 15th day of 1st month
  • • Dano: 5th day of 5th month
  • • Chuseok: 15th day of 8th month
    Solar ↔ Lunar Calendar Converter