Metric TimeThe day is divided into 100 parts (centidays) and the time is given to three decimal places. Think of it as a percent of the day that has passed. Mid-day will be 50.000 LMT (Local Metric Time) in metric Time. |
The current time is:? How many full hours are left until the end of the year? |
Mayan Time
The Mayans used a vigesimal (or base-20) numeral system. Mayan numerals use only combinations of dots (ones) and bars (fives) to form numerals for 1 to 19, and a stylised shell glyph for zero (not shown here). |
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Hexadecimal TimeThe day is divided up into 65536 parts and written in hexadecimal (base-16) notation (A=10, B=11 ... F=15). The "0x" at the begining is just to signify that it is in hexadecimal notation, we could just leave it off or use some other signifier. |
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Binary TimeLike hexadecimal time, the day is divided into 65536 parts, only we display it as a binary number using squares for bits, here using dark squares to represent 1 and white for 0. |
Octal TimeOctal Time uses a base-8 system (digits 0-7). The day is divided into 32768 parts for a total of 5 octal digits. The right-most digit updates about every 2.6 seconds (half the speed of hexidecimal time). |
Base 64 TimeBase-64 uses ASCII characters (in ascending order: A-Z, a-z, 0-1, +, and /). Can you figure out how you would convert Base 64 time to mormal time? |
The many digital clocks used on this page are adapted from the work of Lyle Zapato
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When will a thousand seconds from now occur?
On what date will a million seconds from now occur?
On what date will a billion seconds from now occur?
On what date will a trillion seconds from now occur?
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments: Transum.org/go/?Start=October21 However it would be better to assign one of the student interactive activities below. |
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See the National Curriculum page for links to related online activities and resources.