A notable example is that of Plato, in ancient Greece. The origins of the first alarm clocks are still unknown, but there are reports of the existence of primitive devices with a similar role already back to the centuries BC. The alarm clocks have two main functions: to awaken people from their sleep and to work as a reminder to signal a certain event or activity. However, they normally rely on a system of vibration, sound, or visual display. The warning device - the alarm - has taken different shapes throughout history. Most popular alarm timesĪlarm for 5:00 | Alarm for 5:30 | Alarm for 5:45Īlarm for 6:00 | Alarm for 6:15 | Alarm for 6:30 | Alarm for 6:45Īlarm for 7:00 | Alarm for 7:15 | Alarm for 7:30 | Alarm for 7:45Īlarm for 8:00 | Alarm for 8:15 | Alarm for 8:30Īlarm for 9:00 | Alarm for 9:30 On alarm clocksĪn alarm clock combines the function of a clock with a warning device to alert people when a certain time has come. In this menu, you also have the option to use this loud alarm clock with dark mode or with the brighter version. Here you can configure the alarm clock by choosing the color of the numbers, their font, if you want to see the date, and if you want to use the 24-hour format or not. On the top right corner of the page, you can access the online alarm clock settings. Click on “Test” if you wish to preview the alarm and confirm its sound and volume. Once the set time comes, an alarm message will appear and you will hear the alarm sound you have chosen. You have several options that make this the perfect alarm clock for heavy sleepers. Make sure you choose a sound that will catch your attention. You can either customize all the options to your liking or continue with the default settings. In both cases, a pop-up will show up asking you to name the alarm, choose an alarm sound, and set a color for the event. To set this free online alarm clock you can select one of the above shortcuts for an exact hour or click on the button Set Alarm to define a specific hour and minutes. Explore all the available options to find the tool you need and that suits your purpose the best. You can also customize the features with distinct alarm sounds and highlight each event with different colors. Here you can set alarms for events, check the world clock to confirm the time differences between the world’s major cities, time your activities, and access an online manual counter. Online Alarm Clock is a web tool designed with the practical aim of helping users organize their time and their agendas.

Online digital clock download