Hebcal Jewish Calendar
sourceforge.net
Complete Hebrew calendar program for Unix and Windows. Candlelighting times, holidays, Omer counts, and Torah readings. C and Perl source code available, as well as a Windows executable and links to Web versions of the software.
Two Jewish Calendars
pantherfile.uwm.edu
Interactive Web program that prints out Jewish and civil calendars side-by-side. Does not list holidays in either calendar. Source code available.
Jewish Calendar
mike-r.com
Interface for finding dates in the Hebrew calendar, with holidays and memorial days. Uses PHP calendar software.
Jewish Calendar on the Web
hebrewcalendar.net
Converts dates between Jewish and civil calendars; displays monthly calendars and candle lighting times for different geographical location.
Hebrew Calendar Science and Myths
hebrewcalendar.tripod.com
A collection of resources concerning the calculation of the Hebrew calendar.
Kaluach
kaluach.org
Hebrew and English calendar for Windows. Displays a Hebrew or civil month with holidays, Shabbat portions, and halachic times. User data can be added.
Kaluach.net
kaluach.net
Online Hebrew civil calendar portal. Also receive email reminders of holidays and personal events.
Jewish Calendar - Hebrew Calendar
angelfire.com
Explains the relationship between the Hebrew civil calendar and Hebrew religious calendar and describes the history of the Hebrew month names.
Jewish Holidays
ou.org
Dates of all major and minor Jewish holidays and fast days, with explanations, observances, and links to other articles of interest. From the OU.
Hebcal Interactive Jewish Calendar
hebcal.com
Interactive web interface for generating a list of Jewish dates and times customized to zip codes, converting between Hebrew and Gregorian dates.
Hebrew/English Jewish Calendar with Candle Lighting Times
chabad.org
Perpetual calendar for thousands of locations world-wide.
Rosetta Calendar
rosettacalendar.com
An online handy tool for converting to and from the Gregorian, Julian and Jewish calendars.