Binary clocks use binary code to display the time in hours, minutes, and seconds as strings of ones and zeros. Students learn about binary code and how it is used in computing. They can read sample binary clocks to learn how to tell time using the binary system. More advanced students have the option to build their own binary clock from parts or a kit to learn about engineering project work and teamwork. Resources provided include student worksheets, downloads of free binary clock software, and explanations of how to read binary time displays.

1. Binary Clocks
Developed by IEEE as part of
TryEngineering
http://www.tryengineering.org

2. Lesson Goal
• How binary code works
• How it is applied by computer engineers to
computer and other electronic equipment
including clocks
• students learn how to use the code, read
binary clocks, and advanced students can
build their own binary clock from parts or a kit

3. Lesson Objective
• Learn about binary code and its application in
computing
• Learn about writing, and manufacturing of a
simple electronic device
• Learn how enginnering teams aproach project
work
• Learn about teamwork and working in groups

4. Materials
• Student resource sheets and worksheets
• Binary software downloads
Free binary clock from computer desktop,
http://www.sb-software.com/binaryclock/
Another free binary clock for windows-based
computer desktop,
http://www.goldsofts.com/soft/321/37385/Scotts_
Binary_Clock.html
MAC free binary clock,
http://mac.softpedia.com/get/Dashboard-
Widgets/Calculate-Convert/Binary-Clock.shtml

5. What Time is it?
Student worksheet

6. This worksheet will help you...
• Learn the code (how binary coding works)
• How it can be read using a digital binary clock
(learn how to tell time using the binary
system)

7. Binary Clock
8 8 8
4 4 4 4 4
2 2 2 2 2 2
1 1 1 1 1 1
Hours Minutes Seconds

8. What time binary clock say?
10:37:49

9. What time do the following binary
clocks say?