![]() With a deviation of approximately 6 hours per year, the seasons would shift by about 24 calendar days within 100 years. If we didn't add a leap day on February 29 almost every four years, each calendar year would begin about 6 hours earlier in relation to Earth's revolution around the Sun (see illustration).Īs a consequence, our time reckoning would slowly drift apart from the tropical year and get increasingly out of sync with the seasons. However, the Gregorian calendar has only 365 days in a year. This is called a tropical year, and it starts on the March equinox. It takes Earth approximately 365.242189 days, or 365 days, 5 hours, 48 minutes, and 45 seconds, to circle once around the Sun. Leap days keep our calendar in alignment with Earth's revolutions around the Sun. ![]() ![]() Then it is a leap year.Īccording to these rules, the years 20 are leap years, The year is also evenly divisible by 400. If the year can also be evenly divided by 100, it is not a leap year In our modern-day Gregorian calendar, three criteria must be taken into account to identify leap years: Leap Year Rules: How to Calculate Leap Years The 2024 leap day will fall on February 29, 2024. What is a leap second? Is 2024 a Leap Year? Leap years have 366 days instead of the usual 365 days and occur almost every four years. This so-called intercalary day, February 29, is commonly referred to as leap day. Leap years are years where an extra day is added to the end of the shortest month, February. Business Date to Date (exclude holidays)Ī common year (non-leap year) is shorter than a tropical year, which is the time it takes the Earth to orbit the Sun.For templates in A4 paper size (the international standard paper size used in all other parts of the world) please see Calendarpedia's UK edition. Data provided 'as is' without warranty and subject to error and change without notice.Īll templates downloadable below are in US letter paper size (8.5 by 11 inches - as used in the USA, Canada, Mexico, the Philippines and some South American countries). All content of this website is copyright © 2011-2024 Calendarpedia®. Not for commercial distribution or resale. The files can be scaled up and down so they can be printed on paper sizes larger or smaller than standard letter paper (see instructions).Īll calendars are blank, macro-free and printable and may be used free of charge for non-commercial use, provided that the Calendarpedia logo, the copyright notice ("© Calendarpedia®, and the disclaimer ("Data provided 'as is' without warranty") are not removed. ![]() pdf) and can be opened with the Adobe Acrobat Reader and most other PDF readers, for example the PDF-XChange Viewer and the Foxit Reader. The files are saved in Adobe PDF format (file extension. Get organized and stay ahead of the pack by planning well ahead with these colorful, flexible multi-year calendars and planners! as multi-year planner, longer term school, academic or professional planner, club, team, society or hobby calendar or agenda, vacation, trip and holiday planner, application process and progress tracker, event and special occasion planner, business, corporate or personal calendar, long-term planner, desk calendar or wall planner, for project planning/project management, time tracking and many more. The calendars are multi-purpose, modifiable, adjustable and customizable, and suitable for a great variety of uses, e.g. ![]() Perfect for long-range multi-year planning, for proposals covering multiple years, ongoing projects, series of lectures and events, sports fixtures and travel plans. Version for the United States with federal holidays. These 3-year planning calendars for 2018 to 2020 cover the period from Januto Decem(three years to view on a single sheet, 36 months on one page). ![]()
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