The Maya calendar consists of several cycles or counts of different lengths. The 260-day count is known to scholars as the Tzolkin, or Tzolkʼin.

Haab calendar

It is extremely accurate, and the calculations of Maya priests were so precise that their calendar correction is 10,000th of a day more exact than the standard calendar the world uses today. Of all the ancient calendar systems, the Maya and other Mesoamerican systems are the most complex and intricate.

The Maya calendar uses three different dating systems in parallel, the Long Count, the Tzolkin (divine calendar), and the Haab (civil calendar).

Gregorian calendar

Hebrew calendar

The Christian calendar was created by an Eastern European monk named Dionysius Exiguus. He invented the now commonly used Anno Domini (A.D.) era, which counts years based on the birth of Jesus. He came up with this concept in the year 525, or, 525 years after the birth of Jesus.

The Julian calendar is still used in parts of the Eastern Orthodox Church and in parts of Oriental Orthodoxy as well as by the Berbers. The Julian calendar has two types of years: a normal year of 365 days and a leap year of 366 days.

Today, 14:22, Saturday, June 5, 2021 (UTC), in the Long Count is 13.0. 8.10. 8 (based on the GMT correlation).

Months

The Gregorian calendar differs from the solar year by 26 seconds per year. Despite Lilius’ ingenious method for syncing the calendar with the seasons, his system is still off by 26 seconds. As a result, in the years since Gregory introduced his calendar in 1582, a discrepancy of several hours has arisen.

Today, the vast majority of the world uses what is known as the Gregorian calendar, Named after Pope Gregory XIII, who introduced it in 1582….Current year according to various historical and world calendars, as of April, 2021.

Since the Gregorian calendar accounted more accurately for leap years, it was 11 days ahead of the Julian calendar by 1752. To correct this discrepancy and align all dates, 11 days had to be dropped when the switch was made.

As of the start of 1752, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923. In the British Empire, it was the only year with 355 days, as September 3–13 were skipped when the Empire adopted the Gregorian calendar.

1752

Because Romans believed even numbers to be unlucky, each month had an odd number of days, which alternated between 29 and 31. But, in order to reach 355 days, one month had to be an even number. February was chosen to be the unlucky month with 28 days.

No big deal over 10 or 20 years. But in 128 years, it equals a whole day. Since no one wants to keep a 128-year-cycle, they instead decided to skip leap year every 100 years. So, once a century, on years divisible by 100, we skip leap year.

29. Those born on that day don’t always get to celebrate their actual birthday — since that date occurs only every four years. Someone born on Leap Day typically celebrates birthdays on Feb. 28 or March 1 and uses one of those dates for identification and important documents.

February

While January takes its name from Janus, the Roman god of beginnings and endings, February comes from the word februum (purification) and februa, the rites or instruments used for purification. These formed part of preparations for the coming of Spring in the northern hemisphere.

The traditional concept arose with the cycle of Moon phases; such lunar months (“lunations”) are synodic months and last approximately 29.53 days. From excavated tally sticks, researchers have deduced that people counted days in relation to the Moon’s phases as early as the Paleolithic age.

Julius Caesar’s astronomers explained the need for 12 months in a year and the addition of a leap year to synchronize with the seasons. These months were both given 31 days to reflect their importance, having been named after Roman leaders.

The Babylonians, who lived in modern-day Iraq, were astute observers and interpreters of the heavens, and it is largely thanks to them that our weeks are seven days long. The reason they adopted the number seven was that they observed seven celestial bodies — the sun, the moon, Mercury, Venus, Mars, Jupiter and Saturn.

In an ordinary year, February, March, and November all start on the same day of the week. If they start on Sunday, then all three will have a Friday the 13th. In a leap year, January, April, and July all start on the same day of the week.

According to TimeandDate.com, 2020 has the exact same calendar as the years 1992, 1964, 1936, and 1908, so if you have a cool vintage calendar from one of those years you can go ahead and use it again! Have you already picked up a new calendar for 2020? Well, if you’re willing to wait, you can use it again in 2048!