An event occurred 18 years later, related to the Hijri and Gregorian calendars

<p style=";text-align:left;direction:ltr">Weather of Arabia - In our current month, that is, July, we witnessed the anniversary of the Muslims’ adoption of the Hijri calendar, and this happened in the year 622, specifically on July 16 of the Julian calendar, and it began to be used since that time. This means that the difference between the Hijri and Gregorian calendar was 622 years, because the calendar The Hijri year began to be used in the year 622 AD, as we mentioned previously, and this difference between the two calendars makes the years differ. For example, we are now in the year 1446 AH and the year 2024 AD, and this difference shrinks annually until it reaches 578 years and decreases with the passage of time because the Hijri year is shorter than the Gregorian year by about 11 days <span>.</span></p><p style=";text-align:left;direction:ltr"></p><h2 style=";text-align:left;direction:ltr"> When will the Hijri calendar and Gregorian calendar coincide?</h2><p style=";text-align:left;direction:ltr"> By coincidence here we mean that they share the same year number, and because the Hijri year advances every year by 11 days from the Gregorian year, this will happen starting in the year 20841. Then, after nearly 19 thousand years, the Hijri year 20841 will be at its beginning, i.e. 1 Muharram, and the Gregorian year will be at its end on the day. December 28 - with a margin of error of one day -, after which the agreement will continue for approximately 33 years <strong>and similarity will occur on the same day of the month and today on May 1, 20874 until the end of this month, where the day and month number of the Hijri year will correspond to the day and month of the Gregorian year</strong> , and after that the Gregorian month will be 31 One day as usual, while the Hijri month is either 30 or 29 days depending on the sighting of the crescent. </p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"><img alt="" src="/sites/default/files/uploads-2020/%D8%AD%D8%AF%D8%AB%20%D8%A8%D8%B9%D8%AF%2018%20%D8%B9%D8%A7%D9%85%20%D8%A3%D9%84%D9%81%20%D9%85%D8%AA%D8%B9%D9%84%D9%82%20%D8%A8%D8%A7%D9%84%D8%AA%D9%82%D9%88%D9%8A%D9%85%D9%8A%D9%86%20%D8%A7%D9%84%D9%87%D8%AC%D8%B1%D9%8A%20%D9%88%D8%A7%D9%84%D9%85%D9%8A%D9%84%D8%A7%D8%AF%D9%8A.jpg" style="width: 800px; height: 534px;" /></p><p style=";text-align:left;direction:ltr"></p><ul style=";text-align:left;direction:ltr"><li style=";text-align:left;direction:ltr"><h3 style=";text-align:left;direction:ltr"> <strong>When will the Hijri year precede the Gregorian year?</strong></h3></li></ul><p style=";text-align:left;direction:ltr"> Yes, that will happen forever, because the Hijri year, as we said, is shorter than the Gregorian year. As a result, after the year 20875, the relationship between the two calendars will witness ebb and flow due to the similarity of years and months, because the Hijri month depends on sighting, and all the numbers we mentioned above are derived from the Hijri calendar, which is based on calculation, until that The Hijri year precedes the Gregorian calendar forever after the date 20904 in the first month of it.</p><p style=";text-align:left;direction:ltr"> See also:</p><p style=";text-align:left;direction:ltr"> <a href="https://www.arabiaweather.com/ar/content/%D9%85%D8%A7%D8%B0%D8%A7-%D9%8A... happens to your eyes when you look at the sun during an eclipse? The answer is with Dr. Moaz Al-Hassan</a></p><p style=";text-align:left;direction:ltr"> <a href="https://www.arabiaweather.com/ar/content/%D8%A7%D9%84%D8%A3%D8%AD%D8%AF-... Sunday was the hottest in the world, exceeding a number recorded in 1940</a></p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"></p><hr /><p style=";text-align:left;direction:ltr"> the reviewer:</p><p style=";text-align:left;direction:ltr"> Websites</p>