Almanaut: Lunar Calendar

Every lunar date, solar term and moon phase is worked out on your phone, so it stays right offline. Home and Lock Screen widgets are free.

Almanaut is a perpetual calendar that works offline. Lunar dates, solar terms and moon phases are computed on your phone, so they stay right without a connection. No ads, no tracking.

CALENDAR • Month, week and year views; jump to any date from 1901 to 2100 • A day page with the lunar date, solar term and that day's events and reminders • Search dates, solar terms, festivals, events and reminders

LUNAR CALENDAR AND SOLAR TERMS • Lunar dates including leap months, the 24 solar terms with the exact moment each begins, and the sexagenary cycle with its zodiac animal • Traditional festivals such as Lunar New Year and Mid-Autumn, computed from the lunar calendar so they are right for every year in range

REMINDERS AND EVENTS • Lunar birthdays, anniversaries and countdowns, with clear rules for leap months and short months so a reminder never silently skips a year • Delete just one occurrence of a repeating event, or this one and everything after • Show your system calendars alongside your own events (read-only)

SUN AND MOON • Moon phase, moon age and illumination • Sunrise, sunset and day length for your location or any city you pick

ALMANAC NOTES • The traditional daily almanac layer, with the Xieji Bianfang Shu (1741) as its declared reference • The app's sources page states where each part of the data comes from and what has not yet been checked against the book • Almanac notes are traditional folk material, for reference only

WIDGETS • Home Screen and Lock Screen widgets with today's lunar date, solar term and countdowns, free

PRIVACY • Your calendar stays on your phone. No ads, no tracking.

FULL VERSION Pay once or subscribe. The full version adds the full spirit list, sunrise and sunset for several cities, the multi-day moon phase table, astronomical event alerts, themes and app icons, unlimited reminders, and data export and backup. The calendar, lunar dates, solar terms and basic almanac notes are free forever.

Terms of Service: https://almanaut.io/en/terms/ Privacy Policy: https://almanaut.io/en/privacy/