This holiday is the start of the ‘High Holy Days’ for the Jewish people. It is a celebration of Adam and Eve, and a time to plan for the new year based on lessons learned from the past. This holiday starts a 10 day phase of repentance closing with ‘Yom Kippur’ which is through the evenings of Oct 3 & 4. This allotted time is referred to as the ‘Days of Awe’ when many will attempt to right wrongs towards those who had been insulted from the year before. It is thought that God records names in books to decide who will live, die, enjoy a nice life or vise versa. This is done on Rosh Hashanah and finalized at Yom Kippur. What people have done (repented, prayed, good deeds) through this time period could change the outcome. Based on the depth of commitment many will take off work and avoid technology. This is the most valued Jewish celebration where they are expected to fast for 25 hours starting at the sunset the day before Yom Kippur and ending by nightfall the day of. During this time most will done white as a reflection of being clean.
http://en.wikipedia.org/wiki/Shofar#mediaviewer/File:AlphonseL%C3%A9vy_Shofar.jpg
http://www.deseretnews.com/article/865611683/High-Holy-Days-underway-in-Park-City.html?pg=all
http://en.wikipedia.org/wiki/Rosh_Hashanah