Equation Clock


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If you think that telling the time on a conventional clock is just too easy for you to be bothered with, then you need to get yourself one of these Equation Clocks. Rather than your usual 1-12 numbers (how boring is that?), the Equation Clock has a different complex sum that tells you which number is which. For example, the number 8 on the clock face is represented by the square root of 64 - don't tell us you can't work it out.

You might think that this sort of thing is solely the preserve of nerds and people who want to show off about how clever they are, but once you start to work some of them out it's actually quite fun. Attractively designed to resemble an old fashioned blackboard (to compliment the educational atmosphere, we don't doubt), the Equation Clock is not just for the smarty pants-wearers out there, it's a fun item for any home.

  • The Equation Clock features equations instead of the traditional numbers display.
  • Work out the answers to each equation to be left with the correct time.
  • Requires 1 x AA battery (not included).
  • Suitable for ages 8 years + (although 8 year olds will not be expected to answer all equations correctly).


  • 11.5" in diameter.

Product Details


Delivery & Returns

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: Sold out

Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.

How will I know it has been sent?

You will receive an email to confirm when your item has been sent.

You can also check the status of your order and individual items by accessing My Account details and following the prompts.

Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.


Customer Reviews




(15 Reviews)

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Perfect gift

This Equation Clock was a perfect gift for a mate, both for his birthday and as a new home present.

15 October 2012 by



This Equation Clock is a perfect gift for somebody studying chemistry at Uni!

8 October 2012 by


Just in time! (I think)

I bought this Equation Clock as a present for my mother, a maths teacher at a local secondary school. As soon as I saw it I thought: "perfect!" and what's more, it arrived just in time for the start of term - amazing! Of course, naturally, she loved the clock and put it up on the wall in her room. I was told that it wasn't long before one of her pupils asked the question that we never thought we'd hear a secondary school student say: "what time does the clock say miss?". However, what's even better is the fact that my mother can answer with the words: "10 minutes to root 4!". Overall, I fully recommend this product unless.

16 September 2012 by


Great present for budding mathematicians

The Equation Clock is a great idea! Got this as a present and the recipient loved it.

22 January 2011 by


Learning the time in a whole new way!

I must say one of this is the best clock I have seen, I was torn between this and the backwards clock but as I'm big on math, it had to be this!

13 December 2010 by


What a great find!

I found this when reading an email I had recieved and new it was absolutely perfect as a present for my friend, so ordered it at once. I was not let down- it is exactly as described and greatly admired by all who saw it. And best of all people, it DOES NOT tick! (this was important to me!) I would definetely recommend this to anyone who is into maths, as not only does it look good on your wall but it also encourages a bit of brain training in the office or before bed. Perhaps a little on the costly side, but worth it in the end!

28 May 2010 by


Excellent gift for a mathematician

What do you buy the man who has everything?? Fast delivery. Excellent quality.

21 May 2010 by


equation clock

I bought tis for my maths teacher friend. She does a lot of home tuition so was pleased with this gift. Her pupils will have to widen their knowledge to work out when the end of the lesson is.

17 May 2010 by


Funkiest Clock for Mathematicians

I'm stoked with my Equation Clock. I have been able to use it for revising Maths across an array of maths topics from simply division to solving quadratic equations. If the person in your life loves numbers this is the clock for them. If the person in your life doesn't love numbers this is the clock that will start them on a new journey of discovery!

17 May 2010 by



There's only one word to describe the Equation Clock and that word is cool! It looks great hanging on my wall.

17 May 2010 by


Equation Clock

I bought this Equation Clock for my fiance, who is a Physicist. He thought it was excellent and said that I'd indulged his geeky side.

11 May 2010 by


This clock is algebrilliant!

Telling the time has never been so much fun - counting in seconds is quite challenging though.

6 May 2010 by


Equation Clock

The Equation Clock is a quirky gift for maths geeks. I would definitely recommend this fantastic product.

5 May 2010 by


Great gift

I bought this for my nephew - a Maths student. He loves it! He thinks it is a great gift.

5 May 2010 by


Now you need time to tell the time

this is the coolest clock I have ever seen. How to confuse guests and work out the nerds from the normal!Just right for that clever mathematician in the family and anyone who wants to pretend.

27 April 2010 by

Equation Clock

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Equation Clock