Haru Calendar

A calendar with lunar dates, the 24 solar terms and each day's stem-branch. Register lunar anniversaries once and get the solar date every year.

Haru Calendar is an everyday calendar that shows lunar dates, the 24 solar terms and each day's stem-branch (日辰) on one screen.

■ Calendar

• Lunar date and the day's stem-branch under every solar date
• Solar terms, lunar new moons and full moons marked automatically, with a one-line lunar summary for today
• Tap a date to see its lunar date, solar term, spirit-free-day marker, anniversaries and your note on one card

■ Anniversaries

• Register lunar dates that return every year (memorial rites, lunar birthdays); they are converted to that year's solar date automatically, with the 30th falling back to the last day in short months
• Solar anniversaries too, D-day counters and a 9 AM reminder on the day

■ Pick a Day

• Upcoming "spirit-free days" (lunar dates ending in 9 or 0), traditionally chosen in Korea for moving house, contracts and events — within 30, 60 or 90 days
• Each one shown with its lunar date and any solar term that falls on it

■ Daily notes

• A mood and a one-line journal for each day, gathered newest first

■ What makes it different

• Lunisolar conversion, solar-term entry times and day stem-branch calculations all run on the device with our own calendar engine. No server, no account, no ads — it works fully offline.
• No sign-in. Anniversaries and notes stay on your device and are never sent anywhere.
• Korean and English.