Abstract
In 46 BC, Roman Emperor Julius Caesar introduced the Julian Calendar by reforming the ancient Roman Calendar. The Gregorian Calendar was introduced in 1582 to correct the average year time of the Julian Calendar. According to mathematics, the tropical year is 365 days, 5 hours, 48 minutes, and 46 seconds, or 365.24181 days, determined by the Earth’s revolution around the Sun. In the Julian Calendar, the average year time considered was 365.25 days, but in the Gregorian Calendar, the accuracy was increased by considering it as 365.2422 days. The Gregorian Calendar was introduced in October 1582 and adopted by most countries in the 17th century. In 1752, Britain and the USA accepted the Gregorian Calendar by skipping 11 days from their Julian Calendar. By doing this, they corrected the date but did not calculate the days correctly, meaning 2nd September (Wednesday) was followed by 14th September (Thursday). According to this study, 14th September 1752 should have been a Monday instead of Thursday. The explanation is provided below.
Citations
IRE Journals:
Tanaji Santra
"Day-Date Discrepancy in Gregorian Calendar" Iconic Research And Engineering Journals Volume 8 Issue 7 2025 Page 729-731
IEEE:
Tanaji Santra
"Day-Date Discrepancy in Gregorian Calendar" Iconic Research And Engineering Journals, 8(7)
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