Awesome tool So many features. Great for watch enthusiasts. Particularly quartz, so you can determine your best watch as a reference. Not a good app for the OCD. You will be setting your clocks and watches all the time, because you will know your quartz clock on the wall is off by 39 seconds in 3 months. Seriously, great app with a simple display, with a lot of really precise settings. More than the average Joe will ever use, or understand.
Best Time Sync App This is the best time sync app I have found. Root users can automatically synchronise the time, while non root users can manually sync. There are no annoying Adds and the app is totally free. Only requires Location for app permissions. With a nice clean and easy to use interface there is no need to look for any other time sync app. The Author of this app is a real star.
Finally, On Time! My clock was running slow on my Samsung Note 4; probably due to me thinking too much for my phone friend to compute. (Psychological Time vs. Clock Time) My phone was already jailbroken, so it synchronized my clock within a few thumb taps. NOW I don't have to think so much to be on time! Thanks ClockSync!
Even though my phone and network keep perfect time, I found this app interesting. In the past I used to use radio time signals to measure astronomical observations. It is good to know that these features are now available in the palm if your hand!
There can be glitches. The app will poll the NTP Server once, to get the offset. Then, when you have set the time manually, it will poll the NTP Server again, to get the new offset. This second polling can be deemed excessive, and rejected by the server. Yet, assuming that we tapped at the correct instant to set the new time, we will still have set our clocks correctly.
Great app for keeping time accurate. Would give it (5) ⭐⭐⭐⭐⭐ if the app let you select the clock's font and size. Used since 2010 on HTC EVO 4G WiMAX (Gingerbread) through many phones to Galaxy S6 (Nougat). The app was last updated March 2016. Too bad there's no donate or pro option. I'd pay $1.00. With 1 million downloads the programmer could be a millionaire...
- support for Android 6 Marshmallow (if you get incorrect time after sync, remove 'date' applet from BusyBox)
- fixed old icon for some resolutions