google shows this....might have a bearing on travel....
Yom Ha'atzmaut - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Yom_Ha'atzmaut - Cached - Similar
2012 date, 26 April. 2013 date, 16 April ... Most of the official events take place in Israel's capital city Jerusalem, and are broadcast live on television.
History - Yom Ha'atzma'ut observances - Timing - Arab Reactions