Clocks are used to keep time. There are a number of reasons why a person, group, or business would need to know what time it is. When groups of people decide that they need to be somewhere at the same time, knowing what time it is can help. We need to wake up in order to get to work, and our work pays us by how many hours we put in.
Clocks can be analog, digital, or atomic. Analog clocks have 2 hands and sometimes a third hand for the second. The hour hand is the smaller one and points to the hour while the minute hand is larger and points to the minute. Digital clocks use numbers rather than hands to display the time. Atomic clocks are the most accurate.
There are other methods of keeping time. There are timepieces which are worn by people, timers which count down time, and many ancient methods of keeping time.
Types of Clocks
Wall clocks can be both decorative and functional. They are made in many styles and from most materials. They can be as attractive as lamps or vases. Wall clocks are made to hang on the wall (hence the name) and should be placed so that they can be easily seen from any place in a room.
Large wall clocks with decorative borders of wood or metal can make a dramatic statement on a wall while smaller more delicate wall clocks can set off other decorative elements on a wall. All wall clocks are not decorative though. There are many plain utilitarian clocks available. Wall clocks are sometimes made with a border of mirrors which can give a modern look to a room.
Alarm clocks are designed to wake people up. They can be set for a certain time and when that time comes they will make noise to alert the sleeper that it is time to get up. Alarm clocks can make a discrete beeping noise or can make the radio blare. Sleepers need more or less racket in order to wake from a sound sleep. Some people will not stir at a gentle "beep, beep, beep" and require a full volume of music to awaken them.
Mantel clocks tend to be more decorative in nature than most other types of clocks. They are made to sit securely on the mantle of a fireplace and look nice while letting you know the time. Mantle clocks are often made of wood or metal but can be found in other materials as well. Although mantle clocks are functional they are a lot more decorative than some of the more function only oriented clocks.
Desktop clocks are unique to our time period. They are a program which can be installed on a computer so the desktop will show a clock. Desktop clocks can be handy for people with limited space or people who spend a lot of time on or near the computer.
As desktop clocks are not truly a physical item which needs to be manufactured they can be quite creative in looks and function. They do not need to follow physical laws and can look however the programmer wants them to.
Desk clocks should not be confused with desktop clocks. Desk clocks are small clocks that are made to sit on a desk. They are small so they do not take up too much of the valuable desk space. Anyone who has ever used a desk knows how quickly they get cluttered and a small clock is very important here. These clocks are used by people who spend a lot of time sitting at a desk, and who need to be able to keep track of time without craning their neck to see another clock in the room.
Clocks are very important to keep our society functioning smoothly. People and goods need to get from one place to another on time. Transportation, employment, and everyday life constantly requires us to know when it is and how long it is until we need to be somewhere else.