Holy Day Calendar
Year
Passover*
Unleavened Bread
Pentecost
Trumpets
Atonement
Tabernacles
Last Great Day
2010
March 29
March 30 -April 5
May 23
Sept 9
Sept 18
Sept 23-29
Sept 30
2011
April 18
April 19 - 25
June 12
Sept 29
Oct 8
Oct 13-19
Oct 20
2012
April 6
April 7-13
May 27
Sept 17
Sept 26
Oct 1-7
Oct 8
2013
March 25
March 26 -
April 1
May 19
Sept 5
Sept 14
Sept 19-25
Sept 26
2014
April 14
Apr 15 - 21
June 8
Sept 25
Oct 4
Oct 9-15
Oct 16
* Observed the night before

Passover and Days of Unleavened Bread.

The Passover lamb was slaughtered on the 14th of Nisan. It was eaten with unleavened bread and bitter herbs on into the evening. That night the death angel passed, spared the Israelites who had put the blood of the lamb on the doorposts, and slaughtered the Egyptian firstborn. This began a period of seven days of eating unleavened bread. The 15th and 21st days were holy days on which no work was to be done. The intervening days were not holy days, but no leaven was to be eaten or any leavened products to be in the houses. It was on the Sunday during this period that the first sheaf (omer) of the new harvest—was offered as the Wave Sheaf offering. Only after this offering could the spring harvest begin.