When is new year for Israel?

Answer 1

Christians in Israel celebrate Christmas on December 25, just as Christians

everywhere else in the world do. Although Jews don't celebrate Christmas,

Israeli police and military are posted at Christian holy sites, to protect the

security of the Christian pilgrims and avoid disruption of their worship.

Answer 2

There are 4, as is stated in the Mishna Rosh Hashana 1.1

In Nissan is a new count for Jewish holidays and the King's reign. Thus the first of the jewish holidays is Pessach. If a king is crowned before the first of Nissan, in Nissan it will be the beginning of his second year of reign.

1 Elul is a new year for the tithe of newborn animals.

1 Tishrei is the new year for the count of years and Shmitta

15 Shvat is the new year for the tithe of the fruit of trees.

Answer 3

The secular New Year is celebrated with revelry, parties, and fireworks on the night of December 31st.

The religious new year is commemorated according to its own appropriate style and traditions,

in homes and synagogues, on the holiday of Rosh Hashanah, some time in September.