Today is the first day of the Jewish Year 5772 (תשע״ב). Last night, we celebrated Rosh Hashana, the Jewish New year. The Jewish calendar is lunar based, not solar based, which is why it is not “aligned” with the civil, or Gregorian calendar used by most of the world (including, by the way, Israel). If you like to learn more about it, this is an excellent resource about the Jewish calendar: http://www.jewfaq.org/calendar.htm
So, to help keep track of it, i created this Xceslius based date convertor (xlf is here). Click on a date in the calendar, and you will get the Jewish Hebrew date for that date.
Shana Tova to everyone, may this be a year of health, prosperity and peace for all!