Buy new:
To see product details, add this item to your cart.
FREE Returns
Ships from: Amazon
Sold by: Gifts and Gadgets Online
To see product details, add this item to your cart. You can always remove it later.
FREE Returns
To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Math Wall Clock - Unique Wall Clock - Each Hour Marked by a Simple Math Equation

4.7 4.7 out of 5 stars 2,243 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Wall Clocks by Decodyne

To see product details, add this item to your cart. You can always remove it later.
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.

Purchase options and add-ons


About this item

  • A UNIQUE WAY TO TRACK THE HOURS Instead of Roman numerals or traditional numbers, this clock has a different equation at each demarcation
  • PERFECTLY SIZED Clock measures 11-1/2 inches in diameter and is easy to spot from afar
  • GO WITH EVERYTHING DESIGN Black and white color scheme makes the clock look like a chalkboard and will complement any color palette
  • GREAT GIFT IDEA Give one of these wall clocks to a math teacher, engineer, mathematician or anyone who just loves numbers
  • NO CORDS OR WIRES Clock runs on one AA battery (not included)

Additional Details

Small Business
Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them.

Small Business
This product is from a small business brand. Support small. Learn more

Customer ratings by feature

Easy to read
4.8 4.8
Giftable
4.7 4.7
Accuracy
4.6 4.6
Value for money
4.2 4.2

Customers usually keep this item

This product has fewer returns than average compared to similar products.

Frequently bought together

$19.95
Get it as soon as Sunday, Mar 31
In Stock
Sold by Gifts and Gadgets Online and ships from Amazon Fulfillment.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
These items are shipped from and sold by different sellers.
Choose items to buy together.

Compare with similar items

This Item
Decodyne Math Wall Clock - Unique Wall Clock - Each Hour Marked by a Simple Math Equation
Decodyne Math Wall Clock - Unique Wall Clock - Each Hour Marked by a Simple Math Equation
Recommendations
Math Wall Clock Mathematical Equations,Silent No Ticking 12Inch Quartz Battery Operated Round Modern Home Office Classroom Decor
dummy
Classroom Wall Clock, Math Themed Modern Creative Mathematics Wall Clock, Silent Non-Ticking Quartz Clock for Home Decoration, Battery Operated
dummy
Timelike Math Clock, Unique Wall Clock Modern Design Novelty Maths Equation Clock - Each Hour Marked by a Simple Math Equation (Black)
dummy
QINFIEY 12 Inch Math Wall Clock Silent Non Ticking Movement Quality Quartz Wall Clock for Home/Kitchen/Office/Classroom/School/Living Room Wall Decorations (Gray)
dummy
Crosstime Math Wall Clock with Mathematical Expressions - Wooden Math Clocks Silent Non-Ticking for Classroom Home Decor,Funny Gift for Math Teacher Engineer,12 Inch Black
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price-33% $19.95
List:$29.95
-9% $17.86
Typical:$19.56
-8% $15.56
List:$16.96
-6% $14.99
Typical:$15.99
$20.99$17.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to read
4.8
4.4
4.4
4.2
4.9
5.0
Accuracy
4.6
4.1
4.1
4.1
4.6
5.0
Giftable
4.7
4.3
4.3
4.1
4.5
Value for money
4.2
4.0
5.0
Sold By
Gifts and Gadgets Online
CU-G-BO
CU-G-BO
Timelike Store
QINGYUN-US
Crosstime
material
Wood
Plastic, Glass
Engineered Wood
Acrylic
Ticking
Engineered Wood
shape
Round
Round
Round
Round
Round
Round
mounting type
Wall Mount
Wall Mount
Wall Mount
Wall Mount
Wall Mount
Wall Mount
operation mode
Electrical
Electrical
Electrical
Electrical
Electrical
Electrical
signal format
Analog
found in image Analog
found in image Analog
Analog
found in image Analog
found in image Analog
style
Math
Modern
Modern
Modern
Retro
Classic Modern Math
watch movement type
Mechanical
Quartz
Quartz
Quartz
Quartz
Quartz

Discover similar items

& Up
Price: <$25
Color: Black
Shape: Round
Finish: Black
Power Source: Battery Powered
Mechanism: Electrical
Material: Wood
Special Features: Silent Clock
Display Type: Analog
Room Type: Classroom
Price
Review
Color
Shape
Finish
Power Source
Frame Material
Mechanism
Material
Movement Type
Special Features
Brand
Display Type
Theme
Room Type
No results available. Please adjust the filters and try again.
No more recommendations. Try adjusting your filters.
Bernhard Products Math Wall Clock Black 12 Inch Silent Non-Ticking Unique Gift for Teacher/Student/Engineer Graduate Quartz Round Battery Operated, Home Office School Classroom, Mathematical Equations
1,847
$19
Timelike Math Clock, Unique Wall Clock Modern Design Novelty Maths Equation Clock - Each Hour Marked by a Simple Math Equation (Black)
648
$14
8&#34; Math Clock, Timelike Unique Wall Clock Modern Design Novelty Maths Equation Clock - Each Hour Marked by a Simple Math Equation
648
$9
The Geeky Days Math Equations and Notations Mathematics Chalkboard Geek Battery Operated Wall Clock Silent Non-Ticking Quartz Clock Educational Gifts for Kids Teachers School Classroom Decor,12inches
58
$18
VIKMARI Glass Wall Clock 12 Inch Math Teaching Style Clock Black Battery Operated Quartz Silent Non Ticking Wall Clocks for Classroom Bedroom Study Room
374
$19
AKAHA Math Wall Clock 12-Inch - Unique Art Design - Mathematical Equations Wall Clock for Classroom, Home, Office(3.4)
65
$11
Crosstime Math Wall Clock with Mathematical Expressions - Wooden Math Clocks Silent Non-Ticking for Classroom Home Decor,Funny Gift for Math Teacher Engineer,12 Inch Black
17
$17
Hztyyier Creative Wall Clock E11Math Wall Clock Mathematical Formula Clock Modern Design Novelty Maths Equation Clock Home Decor Student Teacher Gift
2
$25
godblessignMath Wall Clock Each Hour Marked by A Simple Math Equation Round Decorative Clocks Battery Operated 10 Inch Farmhouse Hanging Clock Unique Wall Decor for Office Classroom School Home
19
$13
godblessignMath Wall Clock Each Hour Marked by A Simple Math Equation 15 Inch Round Wall Clocks Battery Operated Farmhouse Hanging Clock Unique Wall Decor for Office Classroom School Home
19
$26
godblessignMath Clock Math Equations and Notations Teaching Style Wall Clocks Battery Operated 15 Inch Silent Non-Ticking Rutic Hanging Clock for Classroom Bedroom Study Room
19
$26
godblessignMathematical Equations Wall Clock Math Teaching Style Large Wall Clocks Battery Operated 15 Inch Silent Non-Ticking Rutic Hanging Clock for Classroom Bedroom Study Room
19
$26

Product Description

DECODYNE MATH WALL CLOCK

A CLOCK WITH A TWIST!

The Decodyne Math Clock is a traditional wall clock with three-hand motion but with one important twist--its hours are marked by simple math equations. To tell the time, you solve for the answer! Black and white in color, the wall clock goes with all types of decor and looks as if it the numbers were written on a chalkboard. The clock measures 11-1/2 inches in diameter, so you can read it easily, even from across the room. Powered by a single AA battery, the Decodyne Math Clock does not need to be plugged into a wall for operation. As a result, you can hang it anywhere you wish.

A UNIQUE GIFT!

A unique gift idea, the Decodyne Math Clock makes a fun present for a math teacher to hang in his or her classroom. It's also the perfect office clock for an engineer, an accountant, a mathematician or anyone else who works with numbers. For home use, the clock will bring a geek chic finishing touch to any room.

PRODUCT FEATURES

A UNIQUE WAY TO TRACK THE HOURS
Instead of Roman numerals or traditional numbers, this wall clock has a different equation at each demarcation.

PERFECTLY SIZED
Clock measures 11-1/2 inches in diameter and is easy to spot from afar.

NO CORDS OR WIRES
Clock runs on one AA battery (not included)

Looking for specific info?

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

Decodyne

Decodyne Math Wall Clock - Unique Wall Clock - Each Hour Marked by a Simple Math Equation


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

/
/
/
/
Please sign in to provide feedback.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
2,243 global ratings

Customers say

Customers like the appearance and educational value of the clock. They mention it's cool looking, unique, and a great gift. Some say it'll be a good learning tool for kids interested in math. They're also satisfied with the entertainment value. That said, opinions are mixed on the quality, performance, and value of this math clock.

AI-generated from the text of customer reviews

79 customers mention79 positive0 negative

Customers are satisfied with the appearance of the clock. They mention that it is cool looking, has a unique design, and is a very nice clock. Some appreciate the offbeat nature of the face, which adds zing to your living room.

"This clock looks great in my math class and my students have commented on it often. The clock is really very simple, and plain...." Read more

"...He LOVES IT! It’s cute and does it’s job." Read more

"...And, the recipient really enjoys using this merchandise. It's unique and very much the conversation piece...." Read more

"Looks nice on my wall,works well," Read more

40 customers mention40 positive0 negative

Customers have good things to say about the clock. They say, for example, it's a great teacher gift, interesting, and a nice gift for an engineering, math, or similar field student. Customers also mention that it'll keep good time and is a wonderful retirement gift.

"...😁😆😅😅😆😁A great gift for a math teacher...." Read more

"...pretty lightweight but considering it’s such a fun concept it makes for a great gift, regardless." Read more

"...They loved it. It’s easy to read and accurate, great gift for anyone who enjoys math." Read more

"What a great gift for teens who love these formulas!" Read more

35 customers mention35 positive0 negative

Customers find the clock educational, and say it's a great way to teach math. They also say it is fun for kids interested in math. Customers also mention that it is a good teaching tool and ideal for classrooms.

"It’s a clock. It works. It has lots of numbers on it...." Read more

"...We sit and break down the equation so this is good learning for kids which mine are breaking into this in school, on top its equals great family..." Read more

"...Unusual gift for any math fanatic! It was lightweight and perfect for his apartment." Read more

"I love this clock! It's a great conversation starter and quiz for the kids :)." Read more

22 customers mention22 positive0 negative

Customers find the clock entertaining and sparks students' interest. They also say it keeps time really well and makes for interesting conversation.

"...It's unique and very much the conversation piece. Therefore, I highly recommend this item and seller." Read more

"I absolutely love this clock!!!! It is a fabulous conversation piece...." Read more

"Good for the price. Great conversation starter" Read more

"Great clock had it for awhile keeps time really well and makes for interesting conversation" Read more

116 customers mention74 positive42 negative

Customers are mixed about the quality of the clock. Some mention it's a great clock, while others say that it only works sporadically and doesn't keep time at the correct pace.

"...But it is simple and keeps good time. Make sure that you have something prepared to mount it and you'll be good to go...." Read more

"...What a great idea. Delivery was quick and clock came in perfect condition." Read more

"Package was damaged but the clock was fine. Interesting clock for my grandson who is becoming an engineer. Quality was worth the price." Read more

"It's a clock, and it's very good at being a clock. As a math person, I really like this one, and other math people likely would...." Read more

41 customers mention21 positive20 negative

Customers are mixed about the performance of the clock. Some mention that it works well, while others say that it stopped working already.

"...He LOVES IT! It’s cute and does it’s job." Read more

"...Within a few months, it stopped working. It only works sporadically and doesn't keep time at the correct pace. It's a shame...." Read more

"It’s a clock. It works. It has lots of numbers on it...." Read more

"As much as I enjoyed the idea of this clock, the one I received did not work. I could hear the tick, but the clock hands would not move...." Read more

22 customers mention12 positive10 negative

Customers are mixed about the value of the clock. Some mention that it's good for the price, while others say that it was a waste of money.

"...Quality was worth the price." Read more

"It was a little cheap looking for the price" Read more

"Good for the price. Great conversation starter" Read more

"...It is my opinion that the price is too high for the quality of the clock." Read more

Didn't expect this to be so much fun :D
5 Stars
Didn't expect this to be so much fun :D
Gifted this to my brother, who's an engineer, for Christmas. Soon as he opened it, we all spontaneously started solving the problems (even though the answers are obvious!) Not so much advanced engineering, these were more like trying to remember high school math. Everyone enjoyed!The clock is pretty average size (just under 12" in diameter, I believe) and looks great on the wall. Still easy to read despite being unconventional. Keeping this in mind for future gifts (and maybe for myself :D)
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on December 5, 2017
25 people found this helpful
Report
Reviewed in the United States on November 29, 2023
2 people found this helpful
Report
Reviewed in the United States on October 31, 2023
Reviewed in the United States on March 15, 2024
One person found this helpful
Report
Reviewed in the United States on March 14, 2021
Reviewed in the United States on July 18, 2023
One person found this helpful
Report
Reviewed in the United States on February 2, 2024
Reviewed in the United States on July 10, 2023
One person found this helpful
Report

Top reviews from other countries

Translate all reviews to English
Autumn Rae
5.0 out of 5 stars High quality!
Reviewed in Canada on January 24, 2022
Marica
5.0 out of 5 stars Perfetto
Reviewed in Italy on November 1, 2022
Kathryn
5.0 out of 5 stars Great clock
Reviewed in the United Kingdom on January 8, 2021
One person found this helpful
Report
Mirco Wagner
5.0 out of 5 stars Gute Qualität
Reviewed in Germany on June 5, 2019
maria carmela
5.0 out of 5 stars Piacevolmente sorpresa
Reviewed in Italy on July 7, 2022