Best 24-Hour Alarm Clocks of 2026
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24-hour alarm clocks are a useful tool for individuals who need to keep track of time throughout the day and night. These clocks feature a unique design that allows them to display time in both the standard 12-hour format and the less common 24-hour format. They are equipped with alarm settings that can be customized to suit individual needs, making them perfect for shift workers, travelers, and anyone who needs to maintain a consistent sleep schedule. With features like automatic time adjustment and easy-to-read displays, 24-hour alarm clocks are a reliable and convenient addition to any bedside table.
At a Glance: Our Top Picks
#TOP 1
9.9
#TOP 2
9.8
#TOP 3
9.6
Top 9 24-Hour Alarm Clocks
Odokee Digital Alarm Clock with Night Light
The Odokee Alarm Clock is designed for easy readability with its large 2-inch numbers, making it perfect for anyone, including seniors and kids. You can adjust the brightness to suit your needs, from bright daytime settings to dim night options. With an impressive alarm volume of up to 110dB, this clock is ideal for heavy sleepers, while the choice of five wake-up sounds ensures a gentle start to your day. Plus, the battery backup feature guarantees that your alarm will still ring even during power outages, giving you peace of mind.
Odokee Digital Dual Alarm Clock
The Odokee Digital Dual Alarm Clock is a great choice for those looking for a modern alarm clock with a range of features. It has a large, easy-to-read LED display with adjustable brightness, customizable dual alarms with adjustable volume, a snooze button, USB port for charging, and battery backup. It's perfect for bedrooms, bedside, nightstands, desks, shelves, tables, and living rooms.
Peakeep Smart Night Light Digital Alarm Clock
The Peakeep Smart Night Light Digital Alarm Clock is a small and light cordless battery operated alarm clock that comes with a built-in ambient light sensor which triggers a soft nightlight to illuminate the display automatically after the switch is flipped to "LOW" or "HIGH" in darkness. It also features gradually faster beep noise, top snooze button, and indoor temperature gauge monitor, allowing you to keep an eye on indoor temperature conditions. The clock face is an HD LCD screen that displays time in 12-hour / 24-hour format and can be read easily, making it perfect for kids, teens, and adults alike.
PPLEE Dual Alarm Clock with USB Charging Port
The PPLEE Dual Alarm Clock with USB Charging Port is a great option for those who need a reliable and easy-to-use alarm clock. With its large 7" LED display, adjustable alarm volume and brightness, and dual alarm function, this clock is perfect for deep sleepers, kids, and the elderly. It also features a snooze function for extra sleep and a built-in USB charging port for your smartphone or other devices. The clock is outlet operated with battery backup settings, and it comes with a 365-day product warranty. Overall, this is a stylish and practical alarm clock that would make a great gift for anyone.
DreamSky Wooden Digital Alarm Clock
The DreamSky Wooden Alarm Clock offers a clear and easy-to-read display with large 1.8-inch numbers, making it perfect for everyone from kids to seniors. You can adjust the brightness with six different levels, so the clock won’t disturb your sleep but will still be visible during the day. The alarm is loud, reaching up to 105dB, which is great if you’re a heavy sleeper, but you can also lower the volume to suit lighter sleepers. Plus, it has a snooze function that lets you catch an extra 9 minutes of rest. This clock is powered by plugging it in, ensuring a steady display without worrying about battery life.
Acedeck Digital Battery Alarm Clock
The Acedeck Battery Alarm Clock is a handy and portable clock that runs on 4 AA alkaline batteries, so you don’t have to worry about finding an outlet. This makes it perfect for travel or use anywhere in your home. Its compact size fits easily on desks or nightstands, while the large 1.8-inch LED numbers ensure you can see the time clearly from across the room. You can adjust the brightness to three different levels or let the clock automatically dim the display based on your room’s lighting, providing a comfortable view without glare. This clock is designed to be simple and convenient for everyday use.
uscce Wooden Digital Alarm Clock
The uscce Wooden Alarm Clock combines style and functionality for your bedside. Its large, 1.8-inch LED numbers make it easy to see, even from across the room. You can customize the brightness from completely off to bright, ensuring it fits your environment, whether it’s day or night. With a built-in USB port, charging your devices overnight is convenient, keeping your essentials powered up. Plus, the dual alarm feature lets you set different wake-up times with adjustable volume, catering to light or heavy sleepers alike. Enjoy a restful night’s sleep with the easy snooze option for a few extra minutes of rest.
Cadmos Extra Loud Alarm Clock
The Cadmos Loud Alarm Clock is designed to wake even the heaviest sleepers with its adjustable volume that can reach up to 105 decibels. You can set dual alarms, perfect for waking up at different times or for family members. The large 2-inch LED display ensures you can easily read the time from a distance, and the brightness can be adjusted to suit your preference. Additionally, the clock features a vibrant RGB display with 8 colorful screens and a 7-color nightlight, adding a fun and lively touch to your bedroom decor.
Vivilumens Sunrise Alarm Clock
The Vivilumens Alarm Clock is designed to enhance your morning routine. With its wake-up light feature, you can enjoy a gentle transition from sleep to wakefulness as it simulates a natural sunrise, gradually brightening your room. You can customize two different alarm times to fit your schedule, ensuring that whether you wake up early or prefer a few extra minutes of sleep, your needs are met. Additionally, with 10 soothing sounds and adjustable timers, you can create a calming atmosphere for drifting off to sleep. The clock also offers three brightness settings, allowing you to find the perfect light level for your bedroom.
Frequently Asked Questions (FAQs)
1. Can you buy a 24-hour clock?
If you want to try making your own 24 hour clocks, it's quite easy. You can buy 24 hour quartz clock movements for about $10.
2. Are all digital clocks 24 hours?
The 12-hour clock runs from 1am to 12 noon and then from 1pm to 12 midnight. The 24-hour clock uses the numbers 00:00 to 23:59 (midnight is 00:00)....What are the 12-hour and 24-hour clock?
3. Is there a 24 hour analog clock?
24-hour analog watches and clocks are still being manufactured today, and are sought after by collectors and enthusiasts. Manufacturers who make 24-hour analog watches include Glycine, Raketa, Vostok, Fortis, Poljot, Swatch, and many others.
During our 24-hour alarm clock research, we found 24 24-hour alarm clock products and shortlisted 9 quality products. We collected and analyzed 331,670 customer reviews through our big data system to write the 24-hour alarm clocks list. We found that most customers choose 24-hour alarm clocks with an average price of $19.05.
The 24-hour alarm clocks are available for purchase. We have researched hundreds of brands and picked the top brands of 24-hour alarm clocks, including Odokee, Peakeep, PPLEE, DreamSky, Acedeck. The seller of top 1 product has received honest feedback from 627 consumers with an average rating of 4.9.
Rebecca Cantu grew up in a family-owned retail store for home and kitchen products. She worked online and gave assistance to people to buy ideal products for their sweet home after graduating from Northwestern University with a marketing degree. She has been writing content for online shopping guides since 2011 with her professional knowledge and natural sensitivity of appliances.