Enter baby's birth date — instantly see the Dol (1st-year) and Duol (2nd-year) dates in solar or lunar calendar.
Disclaimer: Reference tool only. Dol conventions (solar vs lunar, scale of celebration) vary by family, region, and religion — decide together with your family. Lunar conversion uses an open-source library and may differ by ~1 day from official lunar tables.
Dol is the traditional Korean celebration of a baby's first birthday — a major family milestone with a ceremonial table, a 'doljabi' item-picking ritual, and rice cakes.
Most Korean families use the solar birthday, but some follow the lunar birthday. This calculator supports both.
1. Enter baby's birth date (YYYY-MM-DD).
2. Pick first/second birthday and solar/lunar basis.
3. Click Calculate — exact date and D-day appear.
Modern Korean families usually follow the solar birthday. Some elder-led families prefer lunar. Choose whichever your family agrees on.
Most families move to a nearby weekend for convenience. Family attendance matters more than hitting the exact day.
Popular venues are often booked 3–6 months ahead, especially spring and fall weekends.
Not as formally as Dol, but families often mark it with a meal and photos. This tool shows both.
Leap months occur only 7 times in 19 years, so most families use the regular month. The tool handles this via the lunar-javascript library.
This free tool instantly returns Dol and Duol dates in both solar and lunar calendars, plus weekday and D-day — ideal for planning photo sessions and family gatherings.
Designed for parents of babies born 2026 onwards. Advance-plan venue booking, hanbok rental, and return gifts.
Bilingual (Korean/English), no install, no sign-up. Data stays in your browser.