AtomicClock: NTP Clock

Timo Partl

Contains adsIn-app purchases

About this app

Need the exact time to set a watch, set a wall clock, compare UTC, or catch a moment where seconds matter? AtomicClock shows precise reference time from NTP time servers in a clean analog and digital clock display.

Use AtomicClock as an atomic clock, NTP clock, UTC clock, reference clock, or everyday precision clock when accurate seconds are important.

Core features:
• precise current time from NTP servers
• local time and UTC time
• analog clock and digital clock views
• customizable home screen clock widget with time and date
• predefined time servers and custom time server selection
• 12-hour and 24-hour modes
• customizable time format
• multiple clock faces and clock hands
• smooth fluid second hand
• acoustic ticking sounds
• Greenwich Time Signal
• technical NTP details such as round-trip time and stratum
• screen tap actions to hide info, freeze the screen, or mute ticking
• picture-in-picture mode

AtomicClock is useful for manually setting watches, wall clocks, cameras, and other devices, checking exact time before an event, comparing local time with UTC, or keeping a clear seconds clock on screen while you work.

For technical users, AtomicClock can show NTP server information so you can see more than just the clock face. Accuracy depends on the selected time server, network conditions, and device behavior.

AtomicClock is free to use. Some advanced features require AtomicClock Pro, available as a one-time purchase with no subscription.

Ratings and reviews

I opened the screen on my app and found it running quickly, date, hour minute and second just doing its job. I love the dark back drop for easy reading, especially when I have just woke up and also because my photophobia can be upset by a too- bright screen. (That's a thoughtfulness other apps could learn from you.). I would like to add that while some folks can only read digital time, you offer a face clock as well. If you offered a calendar/alarm clock I could get rid of 2 other apps.

Ok. Was told to never argue with a dummy. It was included. For free. Now its not. Shame. Enough said. Reply. I would have never kept the app. Reply to publisher... Yes. Ive been using the app for months with the widget. Until recently when you killed it unless I pay on top of viewing ads. Shame. made it so you have to pay to use the widget. On top of ads already in the app. Uninstalling.

I installed the free version of the Atomic clock, but it appears the author doesn't want me to be able to use the free app, since the only way the widget comes out is white on a clear background, an unusable combination. In addition, the size of the digital clock's characters is too small. This app is crippled, so I deleted it. Good riddance.

What’s new

• Redesigned the color picker for app and widget colors, with presets, a color wheel, and brightness control
• Pro: widget backgrounds can now be customized with color and opacity, and default widget colors follow your Android theme better
• Settings now use clearer icons to make customization options easier to scan
• Custom NTP servers now support host:port entries and better validation before saving