Calendar pear.php.net Date and Time BSD A package for building Calendar data structures (irrespective of output) Calendar provides an API for building Calendar data structures. Using the simple iterator and it's "query" API, a user interface can easily be built on top of the calendar data structure, at the same time easily connecting it to some kind of underlying data store, where "event" information is being held. It provides different calculation "engines" the default being based on Unix timestamps (offering fastest performance) with an alternative using PEAR::Date which extends the calendar past the limitations of Unix timestamps. Other engines should be implementable for other types of calendar (e.g. a Chinese Calendar based on lunar cycles).