How to Tell the Day in Any Year and Century

Ever wondered how people can instantly tell the day of the week in any year? Well, this article will show you how!


  1. Image titled Tell the Day in Any Year and Century Step 1
    Make sure you have already mastered the Dominic System, which is learning a list of 100 people.
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    Think of seven locations, preferably using a house you know well. Visualize this house, looking first at the garden. Concentrate on it. Notice if there are any plants, trees, a pond etc. Next, go into the house and in order go to each room.
  3. Image titled Tell the Day in Any Year and Century Step 3
    Go to the rooms in a logical order. Make sure you do this because it will be difficult to recall if you start downstairs and then jump up a floor and then back down again!
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    "Place" people (from the list that you previously learned) in each room. This will take up the majority of your time, so do it carefully and enjoy it. You will be creating some unique images you have never thought of before!
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    Number your locations. Your first location is the garden which is room number zero. To recall that it is room zero you can imagine a giant football crashing onto your flowers!
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    Place the following people in the garden: 00, 06, 17, 23, 28, 34, 45, 51, 56, 62, 73, 79, 84, 90. Each of these numbers represents a person and an action. You learned your 100 people from the techniques earlier.
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    Take each person and their action, and make them interact with each other, using their actions to help concrete the image. For example, Olive Oil is screaming for help and Ebenezer Scrooge is playing golf with Steve Ballesteros! Before you move on to the next location make sure you know the people and location perfectly.
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    Note these examples for locations:
    • Next location: code 1. Imagine a telegraph pole in the middle of the room! The people you will need for this room are: 01, 07, 12, 18, 29, 35, 40, 46, 57, 63, 68, 74, 85, 91, 96
    • Next location: code 2. Imagine a swan, for example, picking at your dinner!: 02, 13, 19, 24, 30, 41, 47, 52, 58, 69, 75, 80, 86, 97
    • Next location: code 3. Imagine a pair of handcuffs somewhere in the room: 03, 08, 14, 25, 31, 36, 42, 53 59, 64, 70, 81, 87, 92, 98
    • Next location: code 4. Imagine a boat somewhere in your scene: 09, 15, 20, 26, 37, 43, 48, 54, 65, 71, 76, 82, 93, 99
      Image titled Tell the Day in Any Year and Century Step 9
    • Next location: code 5. Imagine a hook somewhere in your scene: 04, 10, 21, 27, 32, 38, 49, 55, 60, 66, 77, 83, 88, 94
    • Next location: code 6. Imagine an elephant’s trunk in your scene: 05, 11, 16, 22, 33, 39, 44, 50, 61, 67, 72, 78, 89, 95
      Image titled Tell the Day in Any Year and Century Step 10
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    Take your time and get these people into your locations. Once you have that done you will then need to learn the month codes. Each month has its own code to go with it. You are going to recall the code from what the month means to you.


Month codes

  • January's code is 1. That is easy to remember because it is the first month and the code is one.
  • For February, think of a brewery. Years ago they used to deliver kegs of beer by boat. A boat looks like a four, so February’s code is four.
  • March has a code of four like February. Imagine a group of soldiers “marching." As they are marching, they are carrying a rowing boat. The boat again means four.
  • April has the code 0. Imagine April showers, but instead of water, footballs and golf balls falling from the sky.
  • May has the code 2. May reminds of choices such as may or may not, so the code is 2!
  • June has the code 5. For example, June would remind you of fish hooks.
  • July has the code 0. Think of somebody name called Julie, and picture her kicking a football around her house, smashing windows and ornaments.
  • August has the code 3. Visualize a grove of trees at the top of a hill. It is very windy up there, and they look like they are going to blow over. Imagine a giant set of handcuffs holding them together.
  • September has the code 6. Visualize an elephant in a parade. Unfortunately, he can't lift his trunk up, and it is dragging on the ground. He will get lots of cuts on his trunk, and it may go septic. The word "septic" reminds you of September, and the trunk reminds you of the code 6.
  • October has the code 1. It remind you of an octopus with his tentacles all laid out on a telephone pole. Perhaps he is listening into people’s phone conversations?
  • November has the code 4. The four again brings to a boat image. On the boat imagine a novice carpenter trying to patch the boat before it and he sinks!
  • December has the code 6. Christmas season is full swing, and you see Santa in the sky. It looks like his reindeer have put on a lot of weight! It turns out he is using elephants this year!

The Year codes

Ok, so now we have the majority of the work done. From now on it is a matter of learning the YEAR codes, but don't worry, they are easy to do.

  • 4
  • 2
  • 0
  • 6
  • 4
  • 2
  • 0
  • 6
  • 4
  • 2
  • 0

Can you see a pattern here? 6, 4, 2, 0, 6, 4, 2, 0. Has the year code of 0. As long as you know that you can figure out the code of the other years.

Ok, so now there is just one more thing you need to keep in mind. This seems so long winded but when you learn the techniques it will take a second to do it in your head!

Leap years

Leap years fall every four years. How will you know if it was a leap year? Is it evenly divisible by four? If it is, that year is a leap year. For example 1942 is NOT a leap year. Forget about the 19 for a second and look at the 42. 4 goes into 42 but not evenly therefore 1942 was not a leap year. What about 1900?

Well you could say that 4 goes into 1900. But when we are looking at the century itself, we divide it by 400. Does it go in evenly? No. therefore 1900 was not a leap year.What about 2000? Well four does go in evenly so yes it is a leap year. When you figure out it’s a leap year this is what you have to do: If the date you are working out falls between 1st January and 29th February then you must take away 1 from your final calculations. If it falls out of this date, do nothing.

Ok, so what day was it on 23rd February 2000 ?

  • So, take the 23. Add this to the code of February… which was?? Brewery, kegs on boat, boat four. So add the four to the 23 giving you 27.
  • Is 2000 a leap year? Yes and our date falls in between 1st January and 29th February so you have to make sure whether it is a leap year or not. Tip: if the year ends in an odd number then you know it cannot be divisible by four!
  • Ok, so we know it’s a leap year, but what is the year code for 00 (Olive Oil)? Where was she? She was in the garden, with a code of zero!
  • So add it all up:
  • 23 (Date) + 4 (February) + 0 (Olive Oil) + 6 (the century code) – 1 (because it falls between the 1st January and 29th February in a leap year) = 32
  • Next thing you have to do is cast out as many sevens as you can: 7, 14, 21, 28… remainder 4.
  • The four is the day of the week.
    • Sunday =1
    • Monday = 2
    • Tuesday = 3
    • Wednesday = 4
    • Thursday = 5
    • Friday = 6
    • Saturday = 0
  • So in this example 23rd February 2000 was a Wednesday.

Let’s try another…October 1943

  • +1 (Octopus on a telegraph pole) + 0 (1900 year code) + 4 (43 = DC in location number 4)
  • Add them all up and you get 17.
  • Cast out the sevens, 7, 14, leaving you with 3.
  • October 1943 was a Tuesday.

Try it for yourself. It may take you a couple of days to get all the locations and codes correct but it really is worth it!

To test you are right try it out on the calendar on your mail program if you have one!

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Categories: Unclear Articles | Puzzles and Memory Games