🎌 Japanese Calendar & Traditions
Free Japanese calendar tools: era (gengo) conversion, kazoedoshi age, yakudoshi and kanreki, rokuyo days, auspicious days, zodiac and lunar dates.
The Japanese calendar runs on layers: imperial eras, the old six-day rokuyo, kazari-counted ages, lucky and unlucky years. These tools convert between the layers for any date you enter.
Practical entries include public holidays, wedding and funeral etiquette dates, traditional month names, and the lunar calendar behind many festivals — with sources for each tradition.
Auspicious Days Finder
Check whether a date is an auspicious day (吉日) in the Japanese almanac. Find Ichiryumanbaibi (一粒万倍日, "one grain becomes ten thousand times") and Tenshabi (天赦日, "heaven forgives") — the luckiest days for new beginnings.
Coming of Age Calculator
Find out when you celebrate your coming of age (成人式, seijinshiki) in Japan. Enter your birth year to see your Seijin no Hi year and whether you qualify under the old (20) or new (18) legal age.
Japan Era Converter
Convert a Japanese era name and year (和暦, wareki) into a Western calendar year and back again. Supports Meiji, Taisho, Showa, Heisei and Reiwa, and correctly handles 元年 (the first year of a reign).
Japan Gengo Lookup
Look up Japan's era names (元号): Meiji, Taisho, Showa, Heisei and Reiwa. See each era's start and end dates, how long it lasted, and the classical meaning behind the name.
Jusan Mairi Calculator
Calculate when to celebrate Jusan Mairi (十三参り), the traditional coming-of-age shrine visit at age 13. Primarily practiced in Kyoto and western Japan. Enter a birth year to find the celebration year.
Kanreki Calculator
Calculate your kanreki (還暦) — the traditional 60th birthday celebration in Japan. This milestone marks completing one full 60-year zodiac cycle. Enter your birth year to find your kanreki year.
Kazoedoshi Calculator
Find your kazoedoshi (数え年), the traditional Japanese age-counting system where everyone is 1 at birth and gains a year each New Year. Enter your birth year for instant results and the full counting rules.
Japanese Lunar Date Converter
Convert any Western calendar date to the old Japanese lunisolar calendar (旧暦, kyureki) and see the moon age (月齢, getsurei). See the lunar month, day, and moon phase instantly.
Japan Public Holiday Checker
Get Japan's 16 public holidays (祝日) for any year: dates, weekdays, and substitute holidays when a holiday falls on Sunday. Includes Happy Monday rules and the equinox days.
Japan Rokuyo Checker
Find the 六曜 (rokuyō) - the traditional Japanese day luck - for any date: 大安, 赤口, 先勝, 友引, 先負, 仏滅. Great for picking wedding and ceremony dates. Based on the lunisolar calendar.
Setsubun & Eho Finder
Find the date of Setsubun (節分) and the year's lucky direction (恵方, eho) for ehomaki rolls. Enter a year to see the bean-scattering festival date and which compass direction brings good fortune.
Japan Shichi-Go-San Calculator
Find the Shichi-Go-San (七五三) ceremony year for a child from their birth year and gender. Boys are celebrated at ages 3 and 5, girls at ages 3 and 7, traditionally on 15 November.
Traditional Japanese Month Names
Explore all twelve wafu-getsumei (和風月名) — traditional Japanese poetic month names from Mutsuki (睦月, January) to Shiwasu (師走, December). See their meanings, seasonal context, and alternative names.
Japan Yakudoshi Checker
Find your yakudoshi (厄年), the traditional Japanese "unlucky ages", from your birth year and gender. The tool lists 前厄, 本厄 and 後厄 and highlights the years that apply right now.
Japan Zodiac Calculator
Enter any year to discover its Japanese zodiac animal (干支, eto) and the full 60-year sexagenary name (干支). Works for every year, past or future, with the 12-animal cycle and its folklore.
Frequently asked questions
What is kazoedoshi?
The traditional East Asian count where everyone turns one at New Year — the tools show both kazoedoshi and full-age (man-nenrei) side by side.
Can I convert Western dates to Japanese eras?
Yes — any date from Meiji onward maps to its era with correct year numbering, including the Reiwa transition.
Are rokuyo and lucky days still used?
Yes for ceremonies and business openings; the pages explain each day’s meaning and how widely it is followed today.