Korean Milestone Birthday Calculator

When to use?

Use it to prepare a parent's Hwangap (60th) or Chilsun (70th) celebration by checking the dates, weekdays, and D-days in advance.

How to use

• Enter the birth date and choose solar or lunar basis.
• See the dates and weekdays of each milestone — Hwangap, Gohui (70), Heesu (77), Palsun (80), Misu (88), Gusun (90), Baeksu (99).
• Check the D-day countdown to each milestone.

Input Explanation

Enter the birth date and select the basis (solar or lunar) on which the parent celebrates their birthday.

Calculation Basis

Hwangap is the 60th birthday (solar year + 60); other milestones such as Gohui (70/age 69), Heesu (77/age 76), and Palsun (80/age 79) are linked to Korean traditional milestone ages.

Usage Examples

• Plan a celebration date - Check weekdays and dates to prepare a parent's Hwangap, Chilsun, or Palsun.
• Plan a D-day schedule - See days remaining to book a family dinner or plan a trip.

Examples

• Born Jun 1, 1966 (solar) → Hwangap Jun 1, 2026 (60th birthday), Chilsun Jun 1, 2035 (age-69 birthday)
• Born lunar Apr 13, 1966 → 2026 Hwangap calculated as the solar date matching lunar Apr 13, 2026

Cautions

• By Korean counting, milestone birthdays other than Hwangap are usually held at the Korean counted age (Chilsun at the age-69 birthday, Palsun at the age-79 birthday).

Guides

Traditional ages for celebrations

Hwangap is held at the 60th (Korean age 61) birthday; Chilsun (Gohui) at Korean age 70 (full age 69) and Palsun at Korean age 80 (full age 79) by long Korean custom.

Lunar birthday conversion

If a parent celebrates a lunar birthday, the corresponding solar date shifts each year, so the solar birthday for that year is calculated separately.

FAQ

Are Hwangap and Hoegap different?

No. Both mean the 60th birthday (Korean age 61), when the sexagenary cycle returns to its start.

At what age are Chilsun and Palsun held?

Traditionally Chilsun (Gohui) is the age-69 birthday and Palsun the age-79 birthday — Korean ages 70 and 80.

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