The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts of Oriental Orthodoxy as well as in the Berber calendar. [1] .
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 manage dates based on the Julian calendar system.
History of the development of the Julian calendar, a dating system established by Julius Caesar.
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 number of days between two important events.
The Julian calendar reformed the ancient Roman calendar and consists of three cycles of 365-day years followed by a 366-day leap year.
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.
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 structure brought global coherence, influenced religion, agriculture, and politics, and laid the foundation for the modern calendar system that governs today’s world.
Julian Calendar 2025: Free downloadable PDF calendars and Julian date calendar. Date calculation and planning made easy with the integrated Julian date converter.
FOX 10 Phoenix: Leap year 2024: Switching from the Julian calendar to Gregorian