KosherJava Zmanim API
Business Profile
Core Value Proposition
KosherJava Zmanim API provides accurate zmanim calculations and supports in-flight integration with airline entertainment systems.
Target Customer
Software developers (especially Java) needing accurate Jewish time calculations; airlines and in-flight entertainment (IFE) providers; travel tech vendors integrating zmanim into apps and maps.
Key Differentiator
Open-source Zmanim library with multi-language ports (Java, JavaScript, .NET); supports real-time, location-based zmanim on moving platforms (airplanes); includes astronomical noon/midnight calculations and Parsha/Shabbat features; emphasizes up-to-date timezone data tooling and validation; active release history and community-driven development.
Implementation Timeline
Key releases and implementations include: Zmanim API 2.4.0 released November 27, 2022; Zmanim API 2.5.0 released June 9, 2023 (Java-based, Maven/GitHub); El Al in-flight Zmanim app deployed and live by February 2023; detailed El Al/Zmanim integration narrative published in 2023.
Pain Points
- 1Calculating zmanim accurately on moving platforms (aircraft) where location, speed, and time zones constantly change.
- 2Maintaining up-to-date timezone data (tz database) to prevent large errors in zmanim calculations across regions.
- 3Debugging and validating zmanim outputs in complex environments (e.g., in-flight apps) and integrating with third-party systems like FlightPath3D.
Key Features
- 1Zmanim API with support for chatzos, alos/hashachar, sunrise, etc., including dynamic calculations for moving locations.
- 2Astronomical noon and astronomical midnight calculations (enhanced precision in Arctic/Antarctic locations).
- 3Special calendar features: upcoming Parshah, Shabbasos/Parshiyos, Yom Kippur/Katan, and Tefila rules via TefilaRules.
- 4Upcoming Parshah retrieval and extended Jewish calendar capabilities.
- 5Open-source ports and releases (Java-based library; JavaScript port KosherZmanim; .NET framework) with Maven/GitHub distribution.
- 6In-flight integration use-case: real-time zmanim on flight maps powered by FlightPath3D and El Al in-flight systems.
Target Customer Industries
Decision Makers
- 1CEO, FlightPath3D
- 2Head of Inflight Entertainment & Connectivity (El Al)
Client Results
- 1Real-time zmanim displayed on El Al’s in-flight maps, calculated based on aircraft location and flight path with frequent recalculation (multiple times a minute).
- 2Countdown times to upcoming zmanim displayed within in-flight app context.
- 3Support for multiple international cities and bilingual English/Hebrew in the Zmanim experience.
- 4Integration with FlightPath3D and El Al’s in-flight entertainment ecosystem to deliver accurate zmanim without local device-only calculations.
Competitive Advantages
- 1Open-source licensing and community-driven development (LGPL tag indicates licensing context).
- 2Cross-language availability (Java library with JavaScript and .NET ports).
- 3Real-time, location-aware zmanim calculations for moving platforms (aircraft).
- 4In-depth calendar features (Parshiyot, Shabbos, tefila rules) beyond basic zmanim.
- 5Active maintenance and clear release history with feature enhancements (e.g., astronomical calculations, upcoming Parshah).
- 6Emphasis on up-to-date timezone data and guidance for tz database updates.
Key Benefits
Case Studies & Success Stories
El Al In-Flight Zmanim App powered by KosherJava
KosherJava’s Zmanim calculations power El Al’s in-flight zmanim within FlightPath3D’s flight maps. The app shows zmanim based on the aircraft’s current location, speed, and path, with countdowns to upcoming zmanim and a compass bearing to Jerusalem. It supports multiple cities, English/Hebrew UI, and includes a security-reviewed workflow for reporting issues. The integration involved collaboration with FlightPath3D and El Al’s IFE team, culminating in a live in-flight app (as of early 2023) and ongoing improvements.
Additional Product Information
Product Description
Open-source Java-based library for calculating Jewish time events (zmanim) with features for precise times, calendar calculations, and in-flight applicability. Includes ports and releases for JavaScript and .NET, and integrates with airline IFE systems via examples like El Al’s Zmanim app.
Target Market
Software developers building Jewish calendar/time calculations; organizations delivering in-flight entertainment or travel tech experiences; airlines and IFE vendors seeking accurate zmanim integrations.
Unique Value Proposition
Open-source, cross-language Zmanim solution with real-time flight-based calculations, comprehensive calendar features, and active maintenance, enabling airlines and developers to deliver accurate zmanim in dynamic environments.
Technical Requirements
Java-based library; distributed via Maven and GitHub; licensing indicated by LGPL tag; supports JavaScript port (KosherZmanim) and .NET port; relies on up-to-date tz database tooling for accuracy.
Pricing Model
Open Source; freely available for use and modification.
Companies Solving Similar Problems
Based on matching: problems solved, target roles, key features, industries
Y Combinator
Y Combinator helps startups make something people want by providing early-stage funding, mentorship, and a strong network.
goQR.me QR Code Generator
goQR.me QR Code Generator provides free QR code creation for commercial and print usage, including logo-enabled codes and vector exports (EPS/SVG) for high-quality print.
JBITSS Technology Solutions
Providing comprehensive technology solutions tailored to business needs.
Design and Development Services
Umuzi Digital provides comprehensive design, product development, and strategic digital support at a fraction of the cost, enabling businesses to enhance their performance and grow.
BuiltWith Web Technology Usage Trends
BuiltWith provides detailed web technology usage statistics and insights for businesses and developers.
SentientJobs
SentientJobs provides a comprehensive job board for AI, human, and hybrid positions, helping individuals find career opportunities in the evolving workforce landscape.
Get More Profiles Like This
Join 2,000+ professionals getting weekly sales intelligence updates from GoAgentic
Ready to Transform Your Sales Pipeline?
Join 700+ sales professionals automating outreach with AI.
Start Free Trial
No credit card required