The Julian calendar has two types of years: a normal year of 365 days and a leap year of 366 days. They follow a simple cycle of three normal years and one leap year, giving an average …

Dec 16, 2025 · Although the Julian calendar was the dominant European dating system for more than 1,600 years, its solar year measurements (365.25 days versus the more precise …

The Julian calendar reformed the ancient Roman calendar and consists of three cycles of 365-day years followed by a 366-day leap year.

Convert calendar date into Julian date and vice versa. Input a date and time or a Julian day number to get corresponding conversion. This Julian's Date Calendar helps to track and …

USE IN 2016, 2020, 2024, 2028, 2032, 2036, 2040, ETC.

Nov 8, 2025 · The Julian Calendar, introduced by Julius Caesar in 45 BCE, standardized the solar year at 365.25 days and revolutionized timekeeping across the Roman world. Its simple …

The Julian calendar tape may be confusing for beginners, but the significance of the Julian date is still enormous. Astronomers and scientific software use the Julian date today to calculate the …

The Julian Calendar, introduced by Julius Caesar in 46 BCE, was a reform of the previous Roman calendar system, which was based on lunar months and often fell out of sync with the solar year.

The Julian Calendar is a solar calendar introduced by Julius Caesar in 45 BCE. It has 12 months, 365 days in a regular year, and adds a leap year every four years with 366 days to align with …

Dec 13, 2025 · Get today’s Julian date (UTC) and convert any calendar date/time to JD, JDN, MJD and day-of-year (YYDDD). Instant results, reverse conversion, copy buttons.