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Standard Unix timestamps are in seconds (10 digits). JavaScript and many modern systems use milliseconds (13 digits). Our tool can automatically detect and handle both formats.

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Gregorian → Julian Converter

Convert dates from Gregorian Calendar (AD/CE) to Julian Calendar

Date Converter/Gregorian to Julian

Gregorian Calendar (AD/CE)

Worldwide

Year

Month(March)

Day

The international standard calendar used worldwide

Introduced by Pope Gregory XIII in 1582

Julian Calendar

Historical / Orthodox churches

2026/03/06

6 March, 2026

Converted

The predecessor to the Gregorian calendar, still used in some Orthodox churches

Introduced by Julius Caesar in 46 BC

Same date in other calendars

PersianIran, Afghanistan

1404/12/29

29 Esfand, 1404

HebrewIsrael, Jewish communities

5786/01/02

2 Nisan, 5786

ChineseChina, East Asia

EthiopianEthiopia, Eritrea

Related Conversions

Gregorian → Julian Gregorian → BS (Nepali)Gregorian → Hijri Gregorian → Persian Gregorian → Hebrew Gregorian → Chinese Gregorian → Thai (BE)Gregorian → Ethiopian

Gregorian → Julian BS (Nepali) → Julian Hijri → Julian Persian → Julian Hebrew → Julian Chinese → Julian Thai (BE) → Julian Ethiopian → Julian

Understanding the Gregorian Calendar (AD/CE) to Julian Calendar Calendar Conversion

Converting dates from the Gregorian Calendar (AD/CE) to the Julian Calendar requires understanding the different rules, epochs, and leap year calculations of each calendar system.

About the Gregorian Calendar (AD/CE)

The international standard calendar used worldwide

About the Julian Calendar

The predecessor to the Gregorian calendar, still used in some Orthodox churches

Whether you're studying history or coordinating international events, knowing how to convert Gregorian Calendar (AD/CE) to Julian Calendar is invaluable. Keep this converter handy for all your calendar needs.