No Christmas and not a new year on January 1.
The Persian New Year is Nowrūz, سال نو
Iran is the main country were they celebrate Nowrūz.
The first day of spring is the first day of a new year, on or around March 21
They make a table with seven objects; the Haft Chin
The seven "Haft Chin" items are:
1.Mirror – symbolizing the Sky
2.Apple – symbolizing Earth
3.Candles – symbolizing Fire
4.Golab – rose water symbolizing Water
5.Sabzeh – wheat, or barley sprouts symbolizing the Plants
6.Goldfish – symbolizing the Animals
7.Painted Eggs – symbolizing Humans and Fertility