Quick answer
Biblical feast days, sabbaths, and moon phases on a lunar calendar
Hebrew Calendar displays a monthly calendar with lunar moon phases, biblical feast days, sabbaths, and new moons based on astronomical calculations.
Features: - Moon phase emojis for every day (New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, Waning Crescent) - Biblical feast days: Passover, Unleavened Bread, Shavuot, Trumpets, Atonement, Tabernacles, Purim, and Hanukkah - Sabbath indicators following the lunar 7-day cycle - New moon and New Year (Nisan 1) markers - Full KJV scripture references with expandable text for each feast - Dark theme - Swipe and keyboard navigation - Responsive layout for phones and tablets - Completely offline — no internet connection needed - No ads, no tracking, no data collection
Calendar data covers 2024 through 2036, precomputed from astronomical calculations using Astropy and verified with MD5 integrity checks.
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
Frequently asked questions
What is Hebrew Calendar?
Biblical feast days, sabbaths, and moon phases on a lunar calendar
Who develops Hebrew Calendar?
Hebrew Calendar is developed by Greg Nwosu.
Which Android version does Hebrew Calendar require?
Hebrew Calendar requires Android API 21 or later.
What is the current version of Hebrew Calendar?
The synchronized F-Droid version is 1.1.2.
Which license does Hebrew Calendar use?
The signed F-Droid metadata lists GPL-3.0-only.
Where is the source code for Hebrew Calendar?
https://github.com/gregnwosu/hebrew_calendar
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