Package com.kosherjava.zmanim.util

package com.kosherjava.zmanim.util

Utility classes for the Zmanim API including classes to calculate sun based times, location information, some formatting. Included in this package are implementations for both the USNO and NOAA / Jean Meeus algorithms.

Author:

© Eliyahu Hershfeld 2004 - 2026

Related Packages

Package	Description
com.kosherjava.zmanim	The KosherJava Zmanim library is an API for a specialized calendar that can calculate different astronomical times including sunrise and sunset and Jewish zmanim or religious times for prayers and other Jewish religious duties.
com.kosherjava.zmanim.hebrewcalendar	This package contain classes that represent a Jewish Date/Calendar, and allows conversion between Jewish and Gregorian dates.

Class	Description
AstronomicalCalculator	An abstract class that all sun time calculating classes extend.
GeoLocation	A class that contains location information such as latitude and longitude required for astronomical calculations.
MeeusCalculator	Implementation of sunrise and sunset methods using the higher-accuracy solar position algorithm of Jean Meeus from Astronomical Algorithms (2nd ed.).
MeeusCalculator.SolarEvent	An enum to indicate what type of solar event (SUNRISE, SUNSET, NOON or MIDNIGHT) is being calculated.
NOAACalculator	Implementation of sunrise and sunset methods to calculate astronomical times based on the NOAA algorithm.
NOAACalculator.SolarEvent	An enum to indicate what type of solar event (SUNRISE, SUNSET, NOON or MIDNIGHT) is being calculated. .
SPACalculator	Implementation of solar times using the Solar Position Algorithm (SPA).
SPACalculator.SolarEvent	An enum to indicate what type of solar event (SUNRISE, SUNSET, NOON or MIDNIGHT) is being calculated.
SunTimesCalculator	Deprecated. This calculator implements the legacy Almanac for Computers procedure of the US Naval Observatory, a deliberately simplified solar model (a single-term equation of center, fixed mean obliquity, and no nutation or aberration) that was designed for roughly one-minute accuracy on early calculators and personal computers.
Zman	A wrapper class for astronomical times / zmanim that is mostly intended to allow sorting collections of astronomical times.
ZmanimFormatter	A class used to format both Instant times generated by the Zmanim package as well as Duration used for temporal hours / sha'os zmaniyos.