May 2026 Korean lunar calendar

Lunar date, day pillar, solar terms and public holidays for every day, based on the Korea Astronomy and Space Science Institute calendar. Times are KST.

May 2026: lunar date and day pillar

DateDayLunarDay pillarSolar term · Holiday
1 Fri 3/15 乙亥 eul-hae Labor Day
2 Sat 3/16 丙子 byeong-ja
3 Sun 3/17 丁丑 jeong-chuk
4 Mon 3/18 戊寅 mu-in
5 Tue 3/19 己卯 gi-myo Start of Summer 20:49 Children's Day
6 Wed 3/20 庚辰 gyeong-jin
7 Thu 3/21 辛巳 sin-sa
8 Fri 3/22 壬午 im-o
9 Sat 3/23 癸未 gye-mi
10 Sun 3/24 甲申 gap-sin
11 Mon 3/25 乙酉 eul-yu
12 Tue 3/26 丙戌 byeong-sul
13 Wed 3/27 丁亥 jeong-hae
14 Thu 3/28 戊子 mu-ja
15 Fri 3/29 己丑 gi-chuk
16 Sat 3/30 庚寅 gyeong-in
17 Sun 4/1 辛卯 sin-myo
18 Mon 4/2 壬辰 im-jin
19 Tue 4/3 癸巳 gye-sa
20 Wed 4/4 甲午 gap-o
21 Thu 4/5 乙未 eul-mi Grain Buds 09:37
22 Fri 4/6 丙申 byeong-sin
23 Sat 4/7 丁酉 jeong-yu
24 Sun 4/8 戊戌 mu-sul Buddha's Birthday
25 Mon 4/9 己亥 gi-hae Substitute Holiday (Buddha's Birthday)
26 Tue 4/10 庚子 gyeong-ja
27 Wed 4/11 辛丑 sin-chuk
28 Thu 4/12 壬寅 im-in
29 Fri 4/13 癸卯 gye-myo
30 Sat 4/14 甲辰 gap-jin
31 Sun 4/15 乙巳 eul-sa

About May 2026

May 2026 has 31 days. On the Korean lunar calendar it runs from lunar month 3, day 15, 2026 to lunar month 4, day 15, 2026. In the sexagenary cycle the lunar year is 2026: 丙午 (byeong-o).

The new moon (day 1 of a lunar month) falls on May 17, and day 15 on May 1, May 31. Day 15 is a calendar date, so the fullest moon can be a day off.

Solar terms this month

Lunar months in this solar month: month 3 (30 days), month 4 (29 days). A lunar month has 29 or 30 days depending on the Moon's cycle.

Public holidays and workdays

Public holidays this month: May 1 (Labor Day), May 5 (Children's Day), May 24 (Buddha's Birthday), May 25 (Substitute Holiday (Buddha's Birthday)). Of 21 weekdays, 18 are workdays.

Long weekends and leave this month

Breaks of 3+ days made of weekends and public holidays: Fri, May 1 ~ Sun, May 3 (3 days, Labor Day), Sat, May 23 ~ Mon, May 25 (3 days, Buddha's Birthday, Substitute Holiday (Buddha's Birthday)).

With leave: take Mon, May 4 off for 5 days in a row, Fri, May 1 ~ Tue, May 5. Plan all your leave days: leave planner →

How to read the day pillar and solar terms

The day pillar (iljin) is the sexagenary name given to each day. Ten heavenly stems and twelve earthly branches pair up in turn, so the same name returns every 60 days. A manseryeok lists the pillars of the year, month, day and hour, and the day pillar in Korean saju (Four Pillars) is the day pillar of the birth date.

The 24 solar terms divide the Sun’s path into 15° steps. They follow the solar calendar, so they fall on nearly the same dates every year, and each begins at an exact minute. Times are Korea Standard Time (UTC+9).

Lunar dates and day pillars come from the korean-lunar-calendar library (Korea Astronomy and Space Science Institute tables). Solar term times come from the manseryeok library, matched to KASI’s tables to the minute.