The Java version on the server was just updated to JDK 5.0 Update 11 and now supports the US 2007 DST Changes mentioned in the previous post. This means that Excel zmanim calendars generated by this site will have the proper daylight savings time for zmanim.
Tag: Zmanim API
Java Zmanim API Update
The first phase of change to allow easier porting to other languages took place with the change in the API from using inheritance of the Java Calendar classes, to one that uses composition. This will make porting it to other languages easier. Included in the update are a number of new zmanim, mostly the addition of a number of new calculations for plag hamincha that are useful when trying to avoid a tartai desasri with early erev shabbos minyanim.