Julian calendar, source of 12 months, leap year and more!

How to convert julian date to normal date in Excel, julian date to calendar date, gregorian, regular

Excelでユリウス日を日付と時刻に変換する

The Julian Calendar: What You Need to Know

Gregorian calendar and Julian calendar - what's the difference?

find out the day by any year

Why Do We Have Leap Years? - An Explanation of the Leap Day and the Julian/Gregorian Calendars

WHY WAS 'LEAP DAY' ADDED TO THE JULIAN CALENDAR - Interesting facts in English #Shorts

Complete method: how to find the week-day for any date?

PHYS 1404 The Julian Calendar

Julian year Meaning

iPhone ユリウス日計算ツール

How to : Gregorian / julian dates

What does Julian date mean?

なぜうるう年があるのでしょうか?

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2021-06-15 Java 1 Julian Date

カレンダーの歴史

ユリウス暦の歴史