The one-page calendar that changes how you view the year

||| FROM BIG THINK |||

• Most of us need to refer to a calendar quite frequently to know what calendar date (day, month, year) corresponds to which day of the week. 
• But rather than having to change your calendar every month, this one-page calendar works for the entire year to give you all the information you need, practically immediately. 
• Even better: if you understand how it works, you’ll never need to buy another calendar again, as simply switching a few “boxes” around can renew your calendar for each year to come.

Each year, most of us throw out our old calendar and replace it with a new one. Each month, we flip our calendar forward another page, and if we ever need to know which day-of-the-week corresponds to a particular day/month combination, we have to either calculate it ourselves or flip forward/backward to the relevant month. Simple but curious questions, such as:

• What date will American Thanksgiving fall on this year?
• Which months have a “Friday, the 13th” in them?
• What day of the week does July 4th fall on?
• Or which day of the week is Christmas Day?

aren’t so easy to figure out unless you actually flip to the needed month (or look up all of the months) to figure out what the proper answer is.

But it turns out that, mathematically, the answer to these questions — or any question where you want to match up the day of the week with the day/month combination in a year — are extremely predictable, straightforward, and simple to figure out. If, that is, you don’t restrict yourself to using a conventional 12-month calendar, but rather use this one-page calendar that not only lasts the whole year, but that’s extremely easy to adjust for any/all years into the future. Let’s show you what it’s all about…

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