Time switches can be used to turn on anything that will awaken a sleeper, and can therefore be used as alarms. Lights, bells, and radio and TV sets can easily be used.[32] More elaborate devices have also been used, such as machines that automatically prepare tea or coffee. A sound is produced when the drink is ready, so the sleeper awakes to find the freshly brewed drink waiting.[33]
Analog clocks display time with an analog clock face, which consists of a round dial with the numbers 1 through 12, the hours in the day, around the outside. The hours are indicated with an hour hand, which makes two revolutions in a day, while the minutes are indicated by a minute hand, which makes one revolution per hour. In mechanical clocks a gear train drives the hands; in electronic clocks the circuit produces pulses every second which drive a stepper motor and gear train, which move the hands.

Use of a Clock is optional. All key date-time classes also have a now() factory method that uses the system clock in the default time zone. The primary purpose of this abstraction is to allow alternate clocks to be plugged in as and when required. Applications use an object to obtain the current time rather than a static method. This can simplify testing.

You’re going to have to admit it to yourself at one point or another—using your smartphone as a digital alarm clock just doesn’t cut it. You sleep through it, you rely on it as a bedroom clock when it’s just not cutting it. Whether you need alarm clocks for heavy sleepers, a projection alarm clock, or a programmable alarm clock that is up to you. You just need to make sure that it works. Fortunately, you know your favorite Gear Hungry experts have whipped up the ten best alarm clock models on the internet.


A piece of art and a functional home essential – this wall clock is a lovely addition to any home. Inspired by contemporary designs, it showcases an open frame crafted from metal wire. The geometric pattern will stand out against any color wall, while the golden finish adds a pop of glamorous appeal. At the center is a golden disk with two sleek black hands. This wall clock requires two AA batteries (not included).
Clocks aren't just for telling time! Take this one for example: artful with its understated analog dial, this piece is perfect lending an upscale feel to your living room look or kitchen ensemble. Measuring 16'' circular, its frame features a glass design accented by a shiny chrome center and openwork hands to mark the hour. This product required one AA battery to operate, which is not included. Suitable for indoor use only.
Auditory and projection clocks can be used by people who are blind or have limited vision. There are also clocks for the blind that have displays that can be read by using the sense of touch. Some of these are similar to normal analog displays, but are constructed so the hands can be felt without damaging them. Another type is essentially digital, and uses devices that use a code such as Braille to show the digits so that they can be felt with the fingertips.
Certainly not just for telling time, wall clocks are perfect for adding artful appeal to your kitchen wall or acting as a focal point above the living room mantel. Take this one for example: a true traditional, its Roman numeral dial is accented by a world map detailing the face. Crafted from plastic, its frame offers more of a metal-inspired look with molded trim and a bronze finish. Requires one AA battery.
The late Roman statesman Cassiodorus (c. 485–585) advocated in his rulebook for monastic life the water clock as a useful alarm for the 'soldiers of Christ' (Cassiod. Inst. 30.4 f.).[4] The Christian rhetorician Procopius described in detail prior to 529 a complex public striking clock in his home town Gaza which featured an hourly gong and figures moving mechanically day and night.[4]
Some clocks have several displays driven by a single mechanism, and some others have several completely separate mechanisms in a single case. Clocks in public places often have several faces visible from different directions, so that the clock can be read from anywhere in the vicinity; all the faces show the same time. Other clocks show the current time in several time-zones. Watches that are intended to be carried by travellers often have two displays, one for the local time and the other for the time at home, which is useful for making pre-arranged phone calls. Some equation clocks have two displays, one showing mean time and the other solar time, as would be shown by a sundial. Some clocks have both analog and digital displays. Clocks with Braille displays usually also have conventional digits so they can be read by sighted people.
Showcasing the time, date, and weather, this clock is an essential for any desk. No need to lift your arm and look at your watch or light up your phone screen, this 0.3'' H x 3.7'' W x 1.5'' D design is an easy way to get the info you need. A vibrant blue backlight keeps it illuminated (requiring the power of a AA battery), while a plastic frame allows it to stand upright.
Hang clocks in places where they’ll be most useful, such as the kitchen or above your desk. They should be easily visible and complement the design of the space. Large wall clocks are ideal for over a fireplace, above an entry table or showcased in an art niche. Smaller wall clocks can be added to your kitchen, home office or child’s bedroom to help keep your day on track. 

Howard Miller Carmen wrought iron wall clock with cast decorative corner ornaments finished in warm gray, dusty wax highlights. Windsor Cherry finished wood columns provide a warm accent on each side. Convex glass covers the antique dial, which offers black Roman numerals and serpentine hands. The swinging pendulum is finished in warm gray with dusty wax highlights to match the case. Quartz, non-chiming battery operated movement.
Time flies when you’re having fun, and you’re going to have a great time updated your look with this chic clock. As much an accent as it is a functional tool, this elegant design will instantly elevate any tabletop display. This clock blends modern minimalism with a pop of glam thanks to its solid-toned background, simple white hour marks, and glossy metallic frame. Try setting it on your master suite nightstand, so you can keep your eye on the time during your morning routine. Next, lean...
Clocks aren't just for telling time! Take this one for example: artful with its understated analog dial, this piece is perfect lending an upscale feel to your living room look or kitchen ensemble. Measuring 16'' circular, its frame features a glass design accented by a shiny chrome center and openwork hands to mark the hour. This product required one AA battery to operate, which is not included. Suitable for indoor use only.

The Howard Miller Stapleton Oversized 30" Wall Clock is a wonderful accent piece. The elegant design of this wall clock can add a touch of sophistication to any home decor. This oversized wall clock has numeral as well as hour markers. You can mount this wall clock on any wall in your home or office as it has classic design in contemporary style. The clock has brushed nickel finish that blends well with most of the decor. This wall clock has a great design in round shape with round dial and...

In Chinese culture, giving a clock (送鍾/送钟, sòng zhōng) is often taboo, especially to the elderly as the term for this act is a homophone with the term for the act of attending another's funeral (送終/送终, sòngzhōng).[75][76][77] A UK government official Susan Kramer gave a watch to Taipei mayor Ko Wen-je unaware of such a taboo which resulted in some professional embarrassment and a pursuant apology.[78]
During the 15th and 16th centuries, clockmaking flourished, particularly in the metalworking towns of Nuremberg and Augsburg, and in Blois, France. Some of the more basic table clocks have only one time-keeping hand, with the dial between the hour markers being divided into four equal parts making the clocks readable to the nearest 15 minutes. Other clocks were exhibitions of craftsmanship and skill, incorporating astronomical indicators and musical movements. The cross-beat escapement was invented in 1584 by Jost Bürgi, who also developed the remontoire. Bürgi's clocks were a great improvement in accuracy as they were correct to within a minute a day.[35][36] These clocks helped the 16th-century astronomer Tycho Brahe to observe astronomical events with much greater precision than before.[citation needed][how?]
Marathon's Atomic alarm clock with temperature and date is packed with features. It has an ambient light sensor, which allows the auto-night light to illuminate the display when necessary. With a soft amber LED, the large digit display is easy to read at night and becomes even brighter if the Snooze/Light button is pressed. At a glance you can easily see the time, date, day and temperature. The controls on the front of the clock allow you to easily set the alarm, switch between Fahrenheit or...
Some clocks, called 'flip clocks', have digital displays that work mechanically. The digits are painted on sheets of material which are mounted like the pages of a book. Once a minute, a page is turned over to reveal the next digit. These displays are usually easier to read in brightly lit conditions than LCDs or LEDs. Also, they do not go back to 12:00 after a power interruption. Flip clocks generally do not have electronic mechanisms. Usually, they are driven by AC-synchronous motors.
A clock accent and 9 metal gears make this vintaged wall decor a statement-making addition to any room. Hang it in the den for a rustic-chic focal point or add it to a cluster of canvas prints for a dynamic gallery display. Nothing adorns your living space like a lavish timepiece, and with the Chellis Wall Clock you are sure to receive a lot of compliments. Intricately designed, this clock is an eye-catching piece that will elevate the beauty of your decor manifold. A rustic and cutting-edge...
Water clocks, also known as clepsydrae (sg: clepsydra), along with the sundials, are possibly the oldest time-measuring instruments, with the only exceptions being the vertical gnomon and the day counting tally stick.[9] Given their great antiquity, where and when they first existed is not known and perhaps unknowable. The bowl-shaped outflow is the simplest form of a water clock and is known to have existed in Babylon and in Egypt around the 16th century BC. Other regions of the world, including India and China, also have early evidence of water clocks, but the earliest dates are less certain. Some authors, however, write about water clocks appearing as early as 4000 BC in these regions of the world.[10]
Over the past decade, many of us have gotten used to setting our alarm clocks on our smartphones rather than purchasing a dedicated device for our nightstands. Despite their seeming obsolescence, an array of cutting-edge clocks have hit the market to aid us with everything from falling asleep to promoting better sleep cycles. Even Amazon is in the alarm clock game, with the Echo Spot, a device that resembles a Magic 8 Ball and functions much like the Echo Show.
If the only thing that will get you out the door in the morning is some serious nagging, Clockman is for you. This chatty clock refuses to shut up, even after you get out of bed. He'll greet you at your desired time, sing while you get dressed, and even yell if you anger him. While Clockman speaks only Japanese for now, his wake-up-and-get-going message isn't lost in translation.
Alarm clocks are perfect for your nightstand or bedside table to make sure that you wake up on time. There are many different kinds of alarm clocks, ranging from digital clocks, analog clocks to projection clocks. Originally, clocks had difficulty with precision because they used a set of imprecise internal gears. Now, atomic alarm clocks are the perfect solution if you are looking for a clock that will get you to work on time. The best alarm clock depends on your needs and personal style. You should consider your purpose behind purchasing an alarm clock before making your selection.
Get up one minute earlier each and every day. We have biological clocks; it’s not just some weird term we use. Time doesn’t exist. I’m not going to get all existential on you and make you contemplate your place in the universe, because you already know what that is—being the version of you that gets up earlier. Your body needs time to adjust, and if you can wean into it like this, in a month, you’ll be waking up a half-hour early.

In 1675, Huygens and Robert Hooke invented the spiral balance spring, or the hairspring, designed to control the oscillating speed of the balance wheel. This crucial advance finally made accurate pocket watches possible. The great English clockmaker, Thomas Tompion, was one of the first to use this mechanism successfully in his pocket watches, and he adopted the minute hand which, after a variety of designs were trialled, eventually stabilised into the modern-day configuration.[40] The rack and snail striking mechanism for striking clocks, was introduced during the 17th century and had distinct advantages over the 'countwheel' (or 'locking plate') mechanism. During the 20th century there was a common misconception that Edward Barlow invented rack and snail striking. In fact, his invention was connected with a repeating mechanism employing the rack and snail.[41] The repeating clock, that chimes the number of hours (or even minutes) was invented by either Quare or Barlow in 1676. George Graham invented the deadbeat escapement for clocks in 1720.


Never squint to see what time it is again, especially when you're waking up 20 times in the middle of the night to, you know, see exactly what time it is. We love the projection feature that displays the time on your wall or ceiling for easy viewing. Plus, it'll even toss up the temperature — so you'll already know what you should wear to work before you even get out of bed.
Certainly not just for telling time, wall clocks are perfect for adding artful appeal to your kitchen wall or acting as a focal point above the living room mantel. Take this one for example: crafted from metal, its frame features an openwork design and a black finish for a look that fits right into traditional abodes and modern farmhouses alike. Measures about 30'' in diameter. Requires one AA battery to operate.
A water-powered cogwheel clock was created in China in AD 725 by Yi Xing and Liang Lingzan. This is not considered an escapement mechanism clock as it was unidirectional, the Song dynasty polymath and genius Su Song (1020–1101) incorporated it into his monumental innovation of the astronomical clock-tower of Kaifeng in 1088.[19][page needed] His astronomical clock and rotating armillary sphere still relied on the use of either flowing water during the spring, summer, autumn seasons and liquid mercury during the freezing temperature of winter (i.e. hydraulics). A mercury clock, described in the Libros del saber, a Spanish work from 1277 consisting of translations and paraphrases of Arabic works, is sometimes quoted as evidence for Muslim knowledge of a mechanical clock. A mercury-powered cogwheel clock was created by Ibn Khalaf al-Muradi[20][21]
Another type of analog clock is the sundial, which tracks the sun continuously, registering the time by the shadow position of its gnomon. Because the sun does not adjust to daylight saving time, users must add an hour during that time. Corrections must also be made for the equation of time, and for the difference between the longitudes of the sundial and of the central meridian of the time zone that is being used (i.e. 15 degrees east of the prime meridian for each hour that the time zone is ahead of GMT). Sundials use some or part of the 24 hour analog dial. There also exist clocks which use a digital display despite having an analog mechanism—these are commonly referred to as flip clocks. Alternative systems have been proposed. For example, the "Twelv" clock indicates the current hour using one of twelve colors, and indicates the minute by showing a proportion of a circular disk, similar to a moon phase.[74]
Molded by mid-century modern style, this 38" wall clock brings a bit of bold flair to any space in your home. Its generous size helps it grab glances (and compliments!) from guests, while its open and numberless design gives it a minimalist feel. Crafted from metal, this round silhouette sports a gold finish with silver-finished hands in the center for subtle contrast. Two AA batteries (not included) are required to operate.

This SmartSet Alarm Radio with Bluetooth Speaker Desktop Clock is a thing of the past. The digital tuning clock radio automatically sets itself on the first use to the correct year, month, date, day, and time. The clock radio features Bluetooth v4.1 digital tuning FM radio. Includes a USB output for mobile charging (2.1a 5V) and a large and easy-to-read LED display. The alarm can be programmed to operate on weekdays only, weekends only, or all seven days of the week. Set the alarm to wake you...
The right wall-mounted timepiece can be and stylish accent or the focal point of your room's decor. Wall clocks offer an opportunity to reinforce the design of your space, enhance wall décor and add functionality to your room. Showcase them alone or make the clock a stylish addition to a gallery wall. Some designs even allow you to display multiple time zones.
Vintage, contemporary, rustic, classic, novelty, and traditional are just a few of the styles of wall clocks available. Classic and traditional clocks generally feature simple numbers or roman numerals that make checking the time at a glance easy. Rustic, nautical, and country themes typically feature pictures of animals or rural and seaside scenes. Contemporary styles often use an abstract design that may lack numbers altogether. Vintage and antique styles of wall clocks may be simple or ornate, and have a midcentury or older look. A wide variety of fun novelty options are also available, ranging from famous characters and well-known brands to glow-in-the-dark and reversed numeral designs.
This is a sleek and compact AM/FM Dual Radio with Nature Sounds Tabletop Clock that features 4 selectable nature sounds (white noise, ocean, rain forest, and campfire). Select one of nature sounds to help you relax and fall asleep at the end of a long day or gently wake you up in the morning. You can also fall asleep or wake to the radio or a traditional alarm. The unit also features a large, easy-to-read 1.2” green led display with dimmer control and digital is AM /FM tuner with 10 AM and 10...

Here is a clock that will look great in any room in the house and it never needs a plug! This Water Clock is powered by ordinary tap water. Never needs batteries or electricity. Just fill this Water clock with water and you are on your way to more eco-friendly home. After about 6 months to a year you may need to dump the water out (your can pour it into a plant) and refill. The clock will remember the time as you do so. It even has an alarm. Great for traveling as well. Why would you ever use...
The Howard Miller 625-542 Brass Works is an oversized, large wall clock featuring a metal outer frame finished in antique brass and accented by four decorative antique brass finished screws applied to the dial. The dial features antique brass-finished gears viewed through an open center. The gear in the middle of the clock turns as a second hand would rotate.. Quartz, battery-operated movement requires 1 AA battery. One year warranty and Free Shipping.
An alarm clock (alarm for short) is a clock that is designed to alert an individual or group of individuals at specified time. The primary function of these clocks is to awaken people from their night's sleep or short naps; they are sometimes used for other reminders as well. Most use sound; some use light or vibration. Some have sensors to identify when a person is in a light stage of sleep, in order to avoid waking someone who is deeply asleep, which causes tiredness, even if the person has had adequate sleep. To stop the sound or light, a button or handle on the clock is pressed; most clocks automatically stop the alarm if left unattended long enough. A classic analog alarm clock has an extra hand or inset dial that is used to specify the time at which to activate the alarm. Alarm clocks are also found on mobile phones, watches, and computers.
During the 15th and 16th centuries, clockmaking flourished, particularly in the metalworking towns of Nuremberg and Augsburg, and in Blois, France. Some of the more basic table clocks have only one time-keeping hand, with the dial between the hour markers being divided into four equal parts making the clocks readable to the nearest 15 minutes. Other clocks were exhibitions of craftsmanship and skill, incorporating astronomical indicators and musical movements. The cross-beat escapement was invented in 1584 by Jost Bürgi, who also developed the remontoire. Bürgi's clocks were a great improvement in accuracy as they were correct to within a minute a day.[35][36] These clocks helped the 16th-century astronomer Tycho Brahe to observe astronomical events with much greater precision than before.[citation needed][how?]
Taking cues from vintage timepieces, this classic round alarm clock ticks boxes for both fashion and function. Measuring just 7.7'' H x 5'' W x 2.3'' D overall, this petite piece is perfectly proportioned to sit on a nightstand, and it makes a subtle ticking sound to provide white noise as you snooze. A metallic finish on the frame offers a bit of sleek style, while twin bells up above help wake you up and keep you on time.
Howard Miller Carmen wrought iron wall clock with cast decorative corner ornaments finished in warm gray, dusty wax highlights. Windsor Cherry finished wood columns provide a warm accent on each side. Convex glass covers the antique dial, which offers black Roman numerals and serpentine hands. The swinging pendulum is finished in warm gray with dusty wax highlights to match the case. Quartz, non-chiming battery operated movement.

The late Roman statesman Cassiodorus (c. 485–585) advocated in his rulebook for monastic life the water clock as a useful alarm for the 'soldiers of Christ' (Cassiod. Inst. 30.4 f.).[4] The Christian rhetorician Procopius described in detail prior to 529 a complex public striking clock in his home town Gaza which featured an hourly gong and figures moving mechanically day and night.[4]


Set multiple alarms, but not on the same device. The world started relying on their smartphones to wake them up, and it simply doesn’t work. Nothing is better than a good old fashion alarm clock. Here’s the trick: any device in your home that has an alarm feature, set it. That means your stove in the other room, the microwave, your alarm clock, your smartphone, and perhaps a stereo system (if anyone’s still using those). It’s one surefire way to ensure that you’ll freak out all the way to your feet.
The Howard Miller Arendal II 625-551 Wall Clock is a long version of the ever popular Arendal Quartz Wall Clock. This tall, elongated 49" high wall clock features carved accents and a turned urn finial which complement the unique style. The aged dial offers black Roman numerals and decorative black hands. The long, wooden stick pendulum features an antique-brass spun bob which swings back and forth and is battery operated like all quartz clocks. The wooden stick swinging pendulum features an antique-brass spun bob. Quartz, triple-chime Harmonic movement plays choice of full Westminster or Ave Maria chimes with strike on the hour with 1/4, 1/2, 3/4 chimes accordingly or switch to hourly only. Bim Bam chime on the hour only. One year warranty and Free Shipping.

Another type of analog clock is the sundial, which tracks the sun continuously, registering the time by the shadow position of its gnomon. Because the sun does not adjust to daylight saving time, users must add an hour during that time. Corrections must also be made for the equation of time, and for the difference between the longitudes of the sundial and of the central meridian of the time zone that is being used (i.e. 15 degrees east of the prime meridian for each hour that the time zone is ahead of GMT). Sundials use some or part of the 24 hour analog dial. There also exist clocks which use a digital display despite having an analog mechanism—these are commonly referred to as flip clocks. Alternative systems have been proposed. For example, the "Twelv" clock indicates the current hour using one of twelve colors, and indicates the minute by showing a proportion of a circular disk, similar to a moon phase.[74]
Small in size but striking in style, this eye-catching wall clock brings a dash of contemporary flair to any arrangement in your home. Showcasing a sunburst silhouette measuring 20" in diameter, this round silver-finished design is crafted with an iron and mirrored frame comprised of black spokes with orb-like accents. A petite glass clock face with sword-style hands sits in the center, allowing you to keep an eye on the hour in any room.
Its display can be turned off or dimmed, so the large, easy-to-read numbers won’t blind you all night long. If you like to wake up to the radio or to an alarm that gets louder over time, you won’t find those features here (though there is a version with a Bluetooth speaker but still no radio). Still, it does its job well, and there’s a reason this clock is found in lots of hotel rooms.

Defined by its vintage silhouette, this round tabletop clock features two bells up above connected by a slender bridge. Its bold black numbers and classic pierced hands help you keep track of your day, while its alarm ensures you'll wake up on time to start your morning right. This metal design is offered in several bright shades with chipped accents that enhance its antique look. It requires one AA battery (not included).
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