According to the solar calendar: February has the 29th day, normally February only has 28 days.
According to the lunar calendar: a month that occurs twice a year, for example a year with September, or another month.
Leap day and future modifications
More specifically, the change depends on factors such as post-glacial recovery and sea level rise due to climate change. We cannot predict these changes precisely enough to make a calendar that is accurate to a single day over tens of thousands of years.
The calculation of the Gregorian calendar was influenced by the Julian calendar used by the Romans. While the Roman calendar originated as a lunar calendar (although from the 5th century BC it no longer followed the lunar cycle) and named the days according to the three weeks of the lunar cycle.
The days are counted down (including this day) until the next named day, so February 24 is ante diem sextum calendas martii (“the sixth day before the calendar of March”).
Leap Day – A special day that only comes once every 4 years.
Since 45 BC, February in leap years has two days called “the Friday before the calendar of March”. The supernumerary day was originally the second of the days so called, but from the 3rd century on it was the first. From there comes the term leap day for February 24 in a leap year.
When this custom was followed, the holidays after the added date were moved during the leap year. For example, the former feast day of St. Matthias, on February 24 in normal years, would fall on February 25 in leap years.
Yet this historical subtlety is in the process of being eliminated: the European Union announced that, from 2000, February 29 will be a leap day rather than February 24, and the Catholic Church Rome now also uses February 29 as a leap day. The difference is clear only in countries that celebrate “name days”.
Adjusting the annual calendar to match the Earth’s rotation. Two Johns Hopkins University professors wanted to do so with a calendar system that did not include leap years, which would not have to be changed until later; February 2nd every year will always fall on a Tuesday.
To fit the Earth’s rotation, the two professors added a leap week every 5 or 6 years. That means every decade, we will only have to face one leap week.
Kodak founder George Eastman also proposed his own type of calendar: the International Fixed Calendar with a fixed 28 days/month, a year with a total of 13 months with the “13th month” named Sol, located between July and August; At the end of every year there is a leap day used as a holiday. This calendar also still has a leap day after 4 years.
Happy special day that comes only once every 4 years – Leap Day 2020!
“Leaplings” – elite people
Only about 5 million people worldwide were born on February 29, with a ratio of 1/1,461.. Some famous people born on this day include: actress and singer Dinah Shore (born 1916), speaker Tony Robbins (born 1960), and hip-hop artist Ja Rule (born 1976).
Technically only celebrating their birthday every four years, but they are part of an elite group of people. In countries that use the lunar calendar in parallel, people born on Lead day can celebrate their birthdays every year according to the lunar calendar.
2024 is a leap year and February will have 29 days, not 28 days like most other years.
This year’s February will have a different day than most other years, which is February 29, also known as leap day.
Leap days can be considered lucky or unlucky depending on the culture, but according to science, it is neither lucky nor unlucky, but just a necessary day to help our calendars align with each other. Earth’s revolutions around the Sun.
The meaning of leap days is to give the Earth the necessary time to go around the Sun.
