Yes, it is for everyone who uses the Gregorian calendar. However, some nations use a different calendar even if the Gregorian calendar is widely used. It is not uncommon for certain countries and religious groups to either follow a different calendar totally or to use two calendars to track significant dates. In the case of the New Year’s Day, many celebrate it on two different dates. One date, January 1, is based on the Gregorian calendar. The other date for New Year’s Day is based on a calendar important to the culture or prevalent religion of the country.
Buddhist New Year
The dates for Buddhist New Year fall on different days of the year depending on the principles and values of the countries where Buddhism is practiced. Thailand, Cambodia, Myanmar, and Sri Lanka are just some of the countries that practice Buddhism. The dates are based on the Buddhist calendar, which is luni-solar. For the above-mentioned countries, New Year starts on the first day of the full moon in the month of April. In countries where Mahayana Buddhism is practiced (Vietnam, Korea and China, for example), the New Year begins on the first full moon in the month of January, sometimes even in the earlier part of February. In Tibet, the Buddhist New Year starts in March according to the Tibetan calendar.