According to which calendar is New Year’s celebrated on January 1st?

According to which calendar is New Year’s celebrated on January 1st?

Answer:

Gregorian calendar

New Year’s Day is celebrated on January 1st according to the Gregorian calendar. The Gregorian calendar is the most widely used civil calendar in the world today. It was introduced by Pope Gregory XIII in October 1582 as a reform of the older Julian calendar. The Julian calendar, which was in use before the Gregorian calendar, had a slight inaccuracy in its determination of the length of the solar year. This inaccuracy had caused the calendar to drift away from the solar year, resulting in discrepancies in the dates of religious events that were tied to the seasons, such as the date of Easter.

To address this issue, the Gregorian calendar was introduced with a more precise calculation of the length of the solar year. The reform involved omitting a certain number of leap days in order to realign the calendar with the solar year. The key change made under the Gregorian calendar was the adjustment of the formula for calculating leap years. Under the Gregorian calendar, a year is a leap year if it is divisible by 4, except for years that are divisible by 100 but not by 400.

As a result of these adjustments, New Year’s Day was fixed on January 1st in the Gregorian calendar. This date has historical significance as it marked the day of the Feast of the Circumcision of Christ in the Christian liturgical calendar. Over time, the celebration of New Year’s Day on January 1st became a widely accepted practice that transcended religious boundaries and became a global celebration. Today, January 1st is recognized as the beginning of the new year in most countries around the world, with festivities, traditions, and resolutions marking the occasion.