AtomicClock vs MultiClock Civil/Solar/Metric

Check precise NTP reference time at a glance. AtomicClock helps you set watches, wall clocks, cameras, and other devices, compare local time with UTC, and follow moments when every second matters. Clear analog and digital time AtomicClock displays current time from NTP servers that reference atomic clocks. Choose a predefined server or add your own, then view local or UTC time in a clean analog or digital clock. Customize your reference clock • Switch between 12-hour and 24-hour time • Customize the time format • Choose from multiple clock faces and hands • Use a smooth, fluid second hand • Add acoustic ticking or the Greenwich Time Signal • Tap the screen to hide information and controls, freeze the display, or mute ticking Details for precise time checks View technical NTP information, including round-trip time and server stratum. Whether you are checking a timestamp, preparing a camera, aligning a wall clock, or setting a watch by hand, the seconds remain clear and easy to follow. AtomicClock is free to use. AtomicClock Pro is available as a one-time purchase with no subscription. It unlocks your preferred clock face, hands, and font, removes ads, and includes upcoming Pro features. AtomicClock displays NTP reference time for comparison and does not change your device’s system time. Results can vary with the selected server, network conditions, and device behavior.

The clock shows two different times in several different ways. Civil time is the current time in your time zone, taking daylight saving rules into account. Solar time depends on the position of the sun in the sky. Solar noon is when the sun is at its highest point. That moment depends on where you are, and on where the Earth is in its annual orbit around the sun. The time display shows hours and minutes in the way you're used to. It also shows a metric time. It breaks the day into 10,000 equal-sized pieces and keeps count of them over the course of the day. Midnight is 0000, and 9999 is the instant just before the next midnight. It also shows a progress bar for the percent of day elapsed. The clock shows sunrise and sunset times for both civil and solar days, in the hour and minute display and in metric. There's a "classic" display page that shows just solar metric, civil metric and civil hh:mm time. There's a converter page that allows you to type in a time, civil or solar, hours:minutes or metric, and convert to all the other available time types.