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Introduction

The clock for learning time has movable hands. It has three main modes, the first demonstrates how to tell the time using an analogue clock. The second mode uses the the clock hands as a way of learning angles. The third mode uses the clock as a way to help understand fractions. The clocked can be altered to change colors and its overall styling. Note in this activity different controls are shown depending on the current mode

Common Controls

The controls above the mode selector are always displayed. At the top you will see a digital clock, below are three buttons. Click the 12 button to display in normal 12 hour format with AM/PM. Click 24 button to change to the 24 hour format. Often you won't want to display the time at all, click off and the digital clock will disappear.

The clock can be used to display the current time (based on the clock of the computer you are using). Click the real time to toggle this feature. This is useful as children can observe how the clock changes throughout the day. For random time problems click the random button and the clock hands will spin to produce a random time. So this is great for lots of quick fire questions.

When the clock is not showing the actual real time, then small handles appear at the end of the hands, these and dragged into position.

Time mode controls.

First select time mode, below are a set of controls. These can be used in time problems or to view how much time has elapsed when showing the actual real time. The first one displays the hours passed. The second one the minutes that have passed. Underneath reset button sets both back to zero.

So a brief example of how to use them would be click random time. Now ask what the class what time will be in say 1hour and 25 minutes. To demonstrate this click reset, so both minutes and hours are zero. Now drag the clock hand forward until the hours is 1 and the minutes is 25. The clock now displays the answer to the initial problem.

Angles mode

Clocks have always been a useful way to teach about angles. This clock has angle measurements built in. First set the mode to angles, to get the control set.

In angles mode you will now see a protractor button click it to toggle the display of the protractor. Next is the auto toggle button, click to turn it on and you will notice the protractor lines up automatically to measure the angle. Move the clock hands and the protractor will follow. Below the protractor button is a slider use this to change the size of the protractor. When measuring angles the large clock hands can be made thin for better accuracy by clicking thin. To display the angle click Ang, and click Arc to display the angle arc. When dragging the minute hand it currently snaps to the nearest minute, turn this feature off by clicking snap. Finally the type of angle can be changed using the select control. So you can choose the angle between the hour hand and minute hand, both clockwise and anti-clockwise. Or measure the angle of the second hand from 12 o'clock. This works very well with the realtime setting as children can see a full angle of 360° turned every minute. This helps learning of key angles such as 0°, 90°, 270° etc. Also conversions such as 30 secs * 6 = 180°

Fractions mode

Select fraction on the mode control to use the clock to teach fractions. Time statements such as 'a quarter past', 'half past' and 'a quarter to' obviously are linked to fraction.

In the fraction mode a circle sector is painted from 12 o'clock to the minute hand position. Two large fractions are displayed the fraction of an hour shows the unsimplified fraction of minutesÃ·60. The simplified fraction is the same fraction cancelled down when possible.

The simple button toggles removal of the hour and second hands to give a simplified view. You can also click thin to toggle the thinner clock hands. The clock is divided according to the divider lines control. The default setting is auto, this divides the clock according to the fraction displayed. Essentially the clock is divided depending on the simplified fraction. However you can turn off auto mode and divide the clock according to the number selected.

Percentages can also be shown by clicking to toggle the percentage display.

Styling the Clock

Select the style mode to access controls. So for example to change the colour of the numbers, click numbers followed by a colour from the colourpicker. To remove the numbers completely click 'X' in the colour picker. You can do this with other parts of the clock too, which obviously can make reading the clock more difficult.

Related activities

Further lessons on the telling the time involve comparison of two different times the two clocks activity is excellent in this regard and can also generate time questions.

To expand on the angles try Basic angles which can be used to examine types of angles such as acute,obtuse and reflex. It can also so be used to create many different types of random angle problems.

Having seen a circular fraction in this activity, the interactive fraction wall can also be used for further teaching of fractions.

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Interactive clock | analog clock | digital | movable | teaching clock | visnos

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Visnos Interactive clock. Simple to teach telling the time using a colourful classroom analog clock. Show equivalent digital clock time. Step by step learn about hours, minutes and seconds. Simply click and drag the movable hands. The clock can also be used to teach about fractions and angles.

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Hip-Hop Around the Clock | :15, :30, :45 | Learning to Tell Time | Jack Hartmann

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Inventors of clocks, watches and stopwatches have not only produced simple devices for our convenience, but they have also created great changes in the way our modern society evolves and operates. Find more about famous clock inventors here.

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Clocks Inventors - All Clocks Innovators

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Inventors of clocks, watches and stopwatches have not only produced simple devices for our convenience, but they have also created great changes in the way our modern society evolves and operates. Find more about famous clock inventors here.

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Modern historians have preserved countless amounts of information and facts about long and varied history of clocks. Here you can find the most interesting stories about their inventors, types, the way clock operate and much more.

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Modern historians have preserved countless amounts of information and facts about long and varied history of clocks. Here you can find the most interesting stories about their inventors, types, the way clock operate and much more.

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With over 600 years of presence in our lives, clocks can be regarded as one of the oldest devices that were created by our ancestors in the birthplace of modern civilization – Babylon. By giving us the means to track time, build schedules and control the flow of our daily routine, clocks managed…

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Mental Math - reading clocks

Common Core Connection for Grades 1 and 2

Tell and write time in hours and half-hours using analog and digital clocks.
Tell and write time to the nearest five minutes, using a.m. and p.m.

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Play Puzzle Pics Clocks at MathPlayground.com! Match the time to the correct clock and complete the mystery picture.

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Trace the development of timekeeping with these helpful sites. Learn how the ancients kept track of time, and see how today's timekeepers aren't all that different.

Follow the ancients as they invent device after device to keep time. Some of these inventions may surprise you!

http://www.ducksters.com/history/china/chinese_calendar.phpm"> Ancient Calendars and Timekeeping in China
The Far East had many useful inventions, time measurement devices among them.

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Trace the development of timekeeping with these helpful sites. Learn how the ancients kept track of time, and see how today's timekeepers aren't all that different. Follow the ancients as they invent device after device to keep time. Some of these inventions may surprise you!

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Fun Facts for Kids about Clock (All You Need to Know!)

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The term clock has been derived from the Dutch word ‘glock’.Thomas Nash was the first ever clockmaker of America in records.

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ABCya! * Time Travel Game - Learn to Tell Time

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Learn to Tell Time! This elementary activity is great fun for all children in the computer lab or at home! Kids practice setting the time on the clocks by selecting a type of clock and then dragging the hands of the analog clock or by clicking the up and down buttons of the digital clock.

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Each year, in the hours of a Sunday morning in March, 60 minutes from the clock and the reappears each year in November! No, it's not a magic trick - it's Saving !

Saving (or " Summer ," as it's known in many parts of the world) was created to make better use of the sunlight hours of the summer. By "" clocks forward an in March, we move an of from the morning to the evening. On the first Sunday in November, we " back" and rewind our clocks to return to Standard .

But where did Saving come from? And how is it useful?

The idea was first suggested in an essay by Benjamin Franklin in 1784, and later proposed to British Parliament by Englishman William Willett 1907. However, it did not become a standard practice in the United States until 1966. Saving was originally instituted in the United States during World War I and World War II in order to take of longer hours and save energy for the war production.

In the years after World War II, individual states and communities decided whether they wanted to continue observing Saving and when to do so. This meant some cities were an behind others even though they were only separated by a few miles on a map.

In order to minimize the confusion, Congress passed the Uniform Act in 1966, which standardized the length of Saving for the country.

Saving is most helpful to those who live farther from the equator, where hours are much longer in the summer than in the winter. In locations closer to the equator, hours and nighttime hours are nearly the same in length throughout the year.

That's why many equatorial cities and countries do not participate in Saving . In the United States, there are only a few places that do not observe Saving , including parts of Arizona, Hawaii, Puerto Rico, the U.S. Virgin Islands and American Samoa.

There are currently about 70 countries that participate in Saving , though not necessarily on the same schedule as the United States. Determining who recognizes Saving and when can sound like a very complicated math word problem.

In Europe, Saving runs from the last Sunday in March through the last Sunday in October. In the southern hemisphere , where the summer season begins in December, Saving is recognized from December through March. Kyrgyzstan and Iceland observe Saving year-round; equatorial countries do not observe Saving at all.

Advocates in support of Saving suggest that in addition to reducing crime and automobile accidents, extended hours also improve energy conservation by allowing people to use less energy to light their businesses and homes. studies argue the energy saved during Saving is offset by greater energy use during the darker autumn and winter months.

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Why Do We Change the Clocks Twice a Year?

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Each year, in the hours of a Sunday morning in March, 60 minutes from the clock and the reappears each year in November! No, it's not a magic trick - it's Saving ! Saving (or " Summer ," as it's known in many parts of the world) was created to make better use of the sunlight hours of the summer.

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Search city:

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Accuracy of the Time Zone Map

All clock changes worldwide are automatically taken into account and displayed in real-time as soon as you reload the page. Future changes are usually incorporated into our database before they take effect, so the map accurately reflects the current situation.

Please note that the Time Zone Map is not a political map but a time zone map showing the time zone boundaries.

How to Use the Map

Search for any city in the search field above and place a black "pin" by that city on the map. If you place more than one pin, an extra line of information is added underneath the map with links to those cities' pages. You may add as many pins as you like.

To remove the pins permanently (undo not possible), simply click here or on the Time Zone Map link in the menu above.

Hover your mouse over any of the red dots to see the name of the city and country and current local time.
"DST" is displayed if there is Daylight Saving Time at the moment.

Click on any red dot and go to that city's page with time, weather, sunrise/set, moon phases and lots more.

Hover your mouse over the map to highlight time zones.

Find the current time offset - displayed in whole hours only - from Coordinated Universal Time (UTC) at the bottom of the map. UTC offsets in diagonally striped areas are not whole hours.

Need some help?

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The timeanddate.com Time Zone Map gives an overview of current local times around the world. It takes into account daylight saving time (DST) changes worldwide.

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Customizable World Clock that shows current local time in the cities of your choice.

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We divide the day into 24 hours, one hour into 60 minutes and one minute into 60 seconds. What other comparably accurate methods have been used throughout history?

"The origin of our time system of 24 hours in a day with each hour subdivided into 60 minutes and then 60 seconds is complex and interesting," says Dr Nick Lomb, consultant curator of astronomy, from the Sydney Observatory.

Our 24-hour day comes from the ancient Egyptians who divided day-time into 10 hours they measured with devices such as shadow clocks, and added a twilight hour at the beginning and another one at the end of the day-time, says Lomb.

"Night-time was divided in 12 hours, based on the observations of stars. The Egyptians had a system of 36 star groups called 'decans' - chosen so that on any night one decan rose 40 minutes after the previous one.

"Tables were produced to help people to determine time at night by observing the decans. Amazingly, such tables have been found inside the lids of coffins, presumably so that the dead could also tell the time."

In the Egyptian system, the length of the day-time and night-time hours were unequal and varied with the seasons.

"In summer, day-time hours were longer than night-time hours while in winter the hour lengths were the other around," says Lomb.

Ancient Babylonians: hours and minutes

The subdivision of hours and minutes into 60 comes from the ancient Babylonians who had a predilection for using numbers to the base 60. For example, III II (using slightly different strokes) meant three times 60 plus two or 182.

"We have retained from the Babylonians not only hours and minutes divided into 60, but also their division of a circle into 360 parts or degrees," says Lomb.

"What we have not retained is their division of a day into 360 parts called 'ush' that each equalled four of minutes in our time system."

Lomb says it's likely that the Babylonians were interested in 360 because that was their estimate for the number of days in a year. Their adoption of a base 60 system was probably allowed them to make complex calculations using fractions.

Ancient Chinese

The ancient Chinese used a dual time system where they divided the day into 12 so-called, 'double hours', originally with the middle of the first double hour being at midnight.

They also had a separate system in which a day was divided into 100 equal parts called 'ke', that are sometimes translated as 'mark' into English.

"What complicated this arrangement was that the two systems did not mesh well since there were a non-integral number of ke in each double hour, specifically 8 1/3. Because of this inconvenience, much later on, in the year 1628 of our era, the number of ke in a day was reduced to 96," says Lomb.

Other cultures

While many cultures had their own calendars, there doesn't appear to be evidence for equivalent methods for keeping time.

"There is a lot of information available on the Mayan calendar, but I have not seen anything to indicate if, and how, they subdivided the day," says Lomb.

"Similarly, though it is well known that the Australian Aboriginal people had seasonal calendars and used the sky to indicate the seasons, I have not seen anything on how they kept time."

Metric time?

In 1998, the Swiss watch company Swatch introduced the concept of a decimal Internet Time in which the day is divided into 1000 'beats' so that each beat is equal to 1 minute 26.4 seconds. The beats were denoted by the @ symbol, so that, for example, @250 denotes a time period equal to six hours.

"So far this system has not caught on," says Lomb.

"For each country the immense cost and difficulty in switching over to this or another metric time system would be enormous, possibly as great, if not greater, than it was for Australia to switch to decimal currency back in 1966," he says.

"The insurmountable difficulty though would be the prior hurdle of getting each country in the world both to agree to change and to agree on a common system of decimal time. I think that I am safe in stating that there will be no change from the present system of time measurement in the foreseeable future."

Keeping timeWhile our units for measuring time seem to be here to stay, the way we measure time has changed significantly over the centuries. The Ancient Egypitians used sundials and waterclocks, as did several civilisations after them. Hourglasses were also an important time-keeping device before the invention of mechanical and pendulum clocks. The development of modern quartz watches and atomic clocks has enabled us to measure time with increasing accuracy.

Today, the standard definition for time is no longer based on the rotation of the Earth around the Sun, but on atomic time. A second is defined as: "9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom."

Read more about keeping time
Dr Nick Lomb was interviewed by Kylie Andrews.

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We divide the day into 24 hours, one hour into 60 minutes and one minute into 60 seconds. What other comparably accurate methods have been used throughout history? "The origin of our time system of 24 hours in a day with each hour subdivided into 60 minutes and then 60 seconds is complex and interesting," says Dr Nick Lomb, consultant curator of astronomy, from the Sydney Observatory.

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Today's Wonder of the Day was inspired by beyonce from desplaines, IL. beyonce Wonders, " who invented time? " Thanks for WONDERing with us, beyonce!

If there's one thing most students look forward to, it's learning to tell time. Once you know how a clock works, you keep your eye on it all the time! ( totally intended!)

Whether you're keeping track of how many minutes left until lunch...or until soccer practice starts...or until your favorite show comes on...or until bedtime, you probably find yourself keeping track of the time all day long.

If you think about it, so much of your life involves - and sometimes revolves around - time. Give it some thought. You have to get up at a time in the morning. Why? Because you have to be school at a time. You get out of school at a time. Television shows come on at particular times. You have to go to bed at the same time each school night.

Time is a big part of our lives. But did you ever give any thought to how it came to be? Who invented time? Was it even invented at all? These are the things we're WONDERing about today!

Time wasn't really invented. After all, it's always been around since...well...the beginning of time! Some people think of it as a that helps to order our lives.

Time can be thought of in many ways. One of the simplest is to think of time in terms of the , the , and the . These three ever-changing bodies of experiences differ and change based upon the passage of time.

For example, you're reading this paragraph right now in the . That last paragraph? You read that in the . The next paragraph? You're going to read that in the . What separates these events? Probably no more than a few seconds.

The , , and can be separated by hours, days, weeks, months, and years. These are all units of measure that were created to help us keep track of the passage of time.

There are no measures of time. Time just rolls on and on, never stopping. To help us better understand and navigate our lives, however, people long ago assigned standards of measurement that would help to get a grasp of the passage of time.

The natural of the Earth on its and the revolution of the Earth around the Sun give us our two most basic measurements of time. The time it takes the Earth to rotate once on its (about 24 hours) is called a day. The amount of time it takes the Earth to once around the Sun (about 365 days) is called a year.

These units have been further divided into even smaller units of measurement . Years are broken down into months and weeks; days are measured in hours, minutes, and seconds. And our environment impacts even these categories. The month, for example, developed from the cycles of the moon. These various units help us communicate about and keep track of time - , , and .

Take some...time...today to think deeply about time. What do you think it's like? Is it just a way for us to better understand our lives? Or does it really exist in some way, such that it flows and could be traveled either backwards or forwards if the means existed to do so. What do you think? What does time mean to you?

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Today's Wonder of the Day was inspired by beyonce from desplaines, IL. beyonce Wonders, " who invented time? " Thanks for WONDERing with us, beyonce! If there's one thing most students look forward to, it's learning to tell time. Once you know how a clock works, you keep your eye on it all the time!

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In this hands-on craft project, kids will make an analog clock of their own, and then use it to learn how to tell time.

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Browse Time Games. Award winning educational materials designed to help kids succeed. Start for free now!

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A museum and research facility dedicated to the preservation and promotion of the history of American-made clocks and watches for the general public.

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Learn to Tell Time #1 | Telling the Time Practice for Children | What's the Time? | Fun Kids English

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Telling Time For Children - Learning the Clock

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Time Activities - Free Activities for Kids on Telling Time - Math Blaster

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Want to teach your little ones to tell time? Use our collection of free, fun time activities for kids!