Calendar2000 for Mac

From WunderMoosen:

Calendar2000 is a powerful, rules based calendar that begins with the year 1 and goes to 99999 (5 nines) and calculates Moon Phases, shows equivalent Jewish, Islamic, Julian dates, has 20 built-in calendar Reform definitions, understands, calculates and automatically displays religious holidays such as Lent, Easter, Passover, Rosh Hashannah; allows the user to define holidays that do not occur on the same day every year (such as Thanksgiving)and automatically calculates and displays such holidays; save calendar as text or HTML; built-in databases include: This Day In History, Hourly Planner, Address Book, Personal Memos for each Month. Calendar2000 supports Mac OS 9, KeyChain and Multi-User/NetBoot configurations.