The Jewish Calendar

We are coming up on the new year for jewish culture and this year will start with the high holidays.  The high holidays are two different holidays over the course of 10 days. The first is Rosh Hashanah, a two-day celebration of the Jewish new year. Eight days after that, we have Yom Kippur, the Day of Atonement. Rosh Hashanah starts on the night of Wednesday September 24 this year, and Yom Kippur starts Friday night October 3.  
Jewish religion actually follows a separate lunar calendar, thats why holidays like hanukkah change on our regular calendar.  The Jewish calendar is also different in that each day is defined to start at sunset, rather than at midnight. That’s why Rosh Hashanah and Yom Kippur start at night.
I often wondered how and why the jewish holidays shift so dramatically each year, turns out they have an entirely different calendar.  And by the look of it we are coming up on the biggest jewish holidays of the year!