New Year’s Day is the first day of the year, in the Gregorian calendar, and falls exactly one week after the Christmas Day of the previous year.
New Year’s Day is a public holiday in all countries that observe the Gregorian calendar.
It is traditionally celebrated with firework displays across the globe at 00:00 in the local time zones.
It was fixed at January 1st in 153 BCE, by two Roman consuls. The month was named Janus after the name of the Roman god of doors and gates. Janus had two faces, one facing forward and one looking back, a fitting name for the month at the start of the year.