Time Server App

4.1
150 reviews
10K+
Downloads
Content rating
Everyone
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About this app

PublicNTP’s Time Server App lets you turn your phone into a mobile SNTP time-keeper. NTP servers are necessary for keeping devices synced to atomic-accurate time. Join a worldwide community and help keep time straight for thousands.

KEEP TRACK OF TIME DOWN TO MILLIONTHS OF A SECOND
As a time server, your phone will have connections to dozens of other GPS devices and NTP servers. Get your time from the most accurate sources and provide a necessary point of reference between other receivers to ensure that all neighboring devices are accurate in parallel.

SEE YOUR LATITUDINAL/LONGITUDINAL LOCATION DOWN TO THE NEAREST METER
Satellite triangulation with GPS allows you to observe your personal location on the globe to mere feet. And as a server making communication with GPS sources, your location will update as often as you want it to. Know your place in the wider world!

FIND THE SATELLITES IN THE SKY SUPPORTING YOUR PERSONAL GPS
Speaking of satellites, with the touch of a button you can find out their location as well. The low-orbit network of lightspeed information is at your fingertips.

WATCH YOUR SERVER TRAFFIC
As a time server, you’ll play host to a thousand devices relying on your accurate measurements. Keep track of mile a minute requests measured out in precise graphs in real time.

SEE THE DIFFERENCE YOU’RE MAKING
As the world depends on faster and faster transactions of information, a reliable source of time is required for all of it to remain secure. It’s a small piece of a grander picture but it’s a distinct and impactful role.

A NO-COST, OPEN SOURCE WAY INTO THE FUTURE
In this rapid, developing, digital world, the one constant is time. And the ability to provide it is a small service that PublicNTP is excited to help you possess. Use our app, enjoy it, and if you’re daring enough: download the code! We want to see how an eager community can take our tools, make them better, and show the world what time is all about.

Open-source on GitHub: https://github.com/PublicNTP/time-server-app
Updated on
Nov 15, 2019

Data safety

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Ratings and reviews

4.0
144 reviews
Jacob Bingham (UFTS)
December 30, 2022
Really neat, displays the correct time even if I disable my phone's network time so I think it really pulls time from GPS. Unfortunately I can't test how accurate it is because I don't have a dedicated GPS module for my computer and I am having issues getting the SNTP server to work (I'm on Android 12), but to be fair it says it works best when rooted.
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Dimitri Pappas
May 26, 2021
Is this app supposed to sync the local device's clock as well? My phone has remained +/- 1 second out of sync (offset) and the app has been installed for several hours. I can't find any way to forcibly sync the clock, which should probably happen by default anyway...? Weird.
4 people found this review helpful
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Brian Pritchard
July 11, 2022
Local time by this app is 3600 seconds slower than real local time! Not accurate. Another atomic clock app available on Play is much more accurate. Currently 58ms difference with that one. Have heard nothing since original review in Sept 2021. Noted that the app has not been updated since 2019.
2 people found this review helpful
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What's new

This release contains translations for the following languages:
- Danish
- Norwegian
- Swedish