How to Create a Perpetual Yearly Calendar in Excel. Today’s author: Mark Gillis is an Excel writer. He was born October 3, 1. Does his birthday fall on the same weekday as your birthday? Do you have nagging, unanswered questions floating around in the back of your mind like: “What day of the week does the date, January 2. What’s the date of the eighth Thursday of 1. Is 9. 00. 0 a leap year?”. Perpetual 12 months calendar. Each piece measures 3.3” x 9.8” after cut. DECORATE, PRINT & CUT. Have a lovely planner, organizer or birthday calendar to decorate. This perpetual monthly calendar is a free monthly calendar template automatically formulated to be used year after year and is printer friendly. Calendar Generator – Create a calendar for any year; Monthly Calendar – Shows only 1 month at a time; Custom Calendar – Make advanced customized calendars. How to Create a Perpetual Yearly Calendar. Download Perpetual Calendar Template for Free. 1 printable templates, samples & charts in PDF, Word, Excel formats. 2015 Calendar in Excel xls format. All Calendar templates files are Printable & Blank & macro free. Excel Calendar Template. Free blank printable Calendar Templates for Excel. Ideal for use as a spreadsheet calendar planner, school calendar, church calendar.Perpetual Calendar Template. Birthdays, anniversaries and special occasions are beautifully commemorated in Donald Verger's Perpetual Calendar. If you’re like me, the answer is clearly no. Nevertheless, there’s a remote chance that someday a question like this will arise and you won’t have the answer at your finger tips. If and when that day comes, you will either need a friend with a photographic memory or a perpetual yearly calendar. If your friends have other talents, you’ll need to dig up a calendar of this type. To save you the trouble, I’ve written one for you that uses Excel and here’s how it works. Download the perpetual yearly calendar. An overview of the problem As most of you probably know, Excel’s date calculation engine handles a time span between the years 1. January 1, 1. 90. Dec. 3. 1 9. 99. 9 is a value of 2,9. Excel’s date formatting features, formula calculation abilities, and built- in date and time functions give you a wonderful foundation when it comes to creating a perpetual calendar. Many yearly calendars are formatted by showing the twelve months of the year in a grid pattern of three by four for the months, with each month further displayed as a “month matrix” of six rows and seven columns, with the month and day of the week as column headers. As you can see, the month name and day of the week are fixed in a pattern that works with any month of any year, so that part is easy when it comes to creating a perpetual yearly calendar. And we already know what a valid range of years is for the calendar, so that’s a simple matter of adding data validation to ensure a correct year. All we need to do is fill in the blanks, where appropriate, for each year. The issue is the same for each month and year, although the position of each date varies from month to month and year to year. Here are the extreme cases that you would need to handle in the formula for each “month matrix”: The “first” falls on a Sunday. The “first” falls on a Saturday. SMTWTFS1. 23. 45. SMTWTFS 1. 23. Dates at the end of each month are not complicated to handle. When the month of the date changes to the following month, don’t display it. Dates at the beginning of each month are complicated to handle. If only the first day of every month began on a Sunday. But the calendar gods — from assorted mythologies — Janus (Roman), Thor (Norse), the Sun god (Egyptian), others who I dare not offend — have conspired against us and so we have to figure that out for ourselves. The first of any month can fall on any day of the week. The first Sunday of any month matrix can be any one of seven different dates. Therein lies the tricky part of creating a formula that can handle the vagaries of time. To find the date of the first Sunday of any month matrix, you need to find the date of the first of the month, subtract the day of the week number, and then add 1. When you subtract the day of the week number, you end up with the last date of the previous month, so that’s why it’s necessary to add 1. Here are the seven possibilities for any month, using January as an example: +1- 1- 2- 3- 4- 5- 6- 7. SMTWTFS 1. 23. 45. Let’s summarize the problem that the formula calculation must solve. For the years 1. 90. For the dates of the previous month that fall within a month matrix (in row one), don’t display them, and for the dates of the following month that fall within the month matrix (in row five or six), don’t display them either. The solution If a picture is worth a thousand words, then a demo is worth a million. It’s time for a little show and tell. Watch the following demo to see how the perpetual calendar works and how the formulas and names are used to calculate the correct dates. Watch this: How the perpetual yearly calendar works. Summing up Some final observations. Without stating the obvious, this calendar doesn’t work properly without automatic calculation set. I mention this only because it’s easy to forget that you might turn it off for whatever reason. Also, the calendar handles the possibility that the workbook might be set to the 1. Although I could have used error handling in the formula, that would have made the formula more difficult to read. And yes, the rumors are true, there were years before 1. This calendar doesn’t handle them. You are welcome to try. Time is on your side. Free Perpetual Calendar Template - xls.
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