The year 2018 will start on January 1st in the Gregorian calendar. It is valid in most countries around the world.
However, there are differences. In the Jewish calendar in spring 2018, the year 5779 will begin (counted from the creation of the world).
In the Muslim calendar, in September 2018, the year 1440 will begin.
The Chinese New Year will start in February 2018 and it will be the Year of the Dog.
In North Korea, 107 year will begin and is counted from the day of birth of Kim Ir Sen.
Regardless of nationality and religion on the occasion of the upcoming New Year in Poland, we wish everyone a successful next year!