• Smart Time Sync 1
  • Smart Time Sync 2

Smart Time Sync

Is time at your android device correct? Check it with atomic clock at GPS satellites or Internet (NTP/HTTP) by Smart Time Sync!
Features:
- Check and sync device's clock with GPS or Internet (NTP/HTTP),
- Detect time zone by location,
- Time signal,
- Background time sync with NTP(HTTP),
- Background passive time sync with GPS. Passive means the app uses GPS only when another app uses it,
- Automatically switch to HTTP time source if NTP one is unreachable
- Very small memory footprint. In paid version even smaller
- less 100Kb.

If your device is not rooted, you can sync in manual mode only. How to root your device you can read at http://goo.gl/LkHSbd or google "how to root your_phone_model"If you want the app to detect and set time zone, just click on timezone field in the app and follow guide or install "Smart Time Sync TZ data".

If the app helps you and you love it, please rate it 5 stars only
- 4 stars and less is a negative rating.

If the app doesn't work for you, please email me. I can't make the app better if you just leave a comment.In free version background sync feature is seven days limited.Thanks for using the app!

Category : Tools

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Reviews (28)

Bla. J. Mar 25, 2021     

I wish we could see atomic time and the phone's time setting function simultaneously. This would make it easier to set the time manually, instead of waiting to hear the tone. (How can deaf people use this app if not rooted?). Also, I wish the atomic time display was in a larger typeface so I could see it more easily from a distance when setting the time on other devices.

Dav. M. May 23, 2022     

I want to know any time difference between my connected cell tower vs more accurate NTP sources, because AT&T forces time (if un-rooted) per its tower. This simple app displays any delta perfectly. Works fine (un-rooted) on my S22 Ultra.

QUA. P. Jan 28, 2022     

Awesome app! I do have one suggestion or request: Is there is any way for the app to autocorrect for any gps timing lag/drift (from hardware, etc. issues) like stand-alone dedicated GPS master clocks do so that the time won't have any fraction of second delay? Just curious if this could be implemented on android. Thanks for a great app! 👍

d. b. Mar 23, 2021     

Great app but has one annoying feature: the time offset is the wrong way round. So if the phone's time (device) is fast compared with network time (source) then a minus offset is displayed rather than a positive one. It must be very easy to fix this error.

Jim. M. Jan 19, 2020     

Strange. My Dolamee device running Android 6.0.1 was off by 58 minutes no matter what I tried. so I downloaded this app which could recognize thw time was off but couldn't correct the time even though it was given root access. Same was true for another app in Play Store so I resorted to ClockSync which I couldn't find in Play Store and it worked.

Ano. B. Jul 11, 2020     

It shows the actual time from an ntp server and it shows the system time but it does not sync the latter to the former when I hit the sync button. In short, it does not work. My device is rooted.

Mau. M. Jun 22, 2020     

The link to get the pro version doesn't go anywhere. There is also some issue here. People don't bother to root phone just because they are keen to get paid app. In fact it is because they think rooting phone will give some opportunity to get some free stuff, at the risk of bricking their phone. For this reason I have stop rooting phone because it is not save to root the new phone model. It will be better to pay for some app if it is safer to use, rather than get free app but the phone may brick

Jos. T. Dec 29, 2021     

It doesn't correct the system time when pressing the sync button. The app is granted root access.

Mit. G. Dec 19, 2020     

Fantastic app. I use it in conjunction with the wwvb emulator app to sync my atomic watch within 25 ms accuracy. Wow!

Mat. M. Oct 13, 2020     

Good little app, does what it says. Required a little permissions configuration to get the sync working.

And. A. Oct 18, 2020     

The watch is a good value for the price. The screens are easy to navigate and set up. I look forward to using this regularly.

Jea. H. Mar 20, 2021     

omg, a miracle. it fixed time I have a old phone, there was no way to fix the time because the settings are blocked and there's no phone network.

Aki. L. Mar 8, 2022     

Keeps crashing when trying to sync. Android 11.

LJ. T. May 9, 2020     

Very, very clever little app, well done to the Devs for this. Would love to see anything else they have in the works.

Job. J. May 2, 2022     

Shows both gps and ntps time, but older Android version app

Dha. R. Jan 16, 2020     

I wa struggling to keep the clock uptodate on my tab. This is very useful. God bless you.

Chr. R. Jan 14, 2022     

Makes it easy to manually sync time if you're not rooted

Al. H. Sep 7, 2020     

Interesting. But syncing stopped working after a few times...

Sar. W. Oct 8, 2021     

Just beeping.....and it don't sync like the app ClockSync.. apparently can't find it..

Spa. Dec 8, 2020     

Constant crashing/exit without reason or error being shown. Useless

Cha. S. Feb 27, 2020     

Samsung Galaxy Tab 3 Clock would be always .44 secs off program solved it as if by magic.

Des. C. Mar 3, 2020     

Couldn't synchronise automaticly but had a good manual option

Nbd. L. Oct 25, 2020     

Time sync does not work (root granted) Other functions work fine.

Cap. S. V. Dec 25, 2020     

Needs root to sync on auto ! Else a good app.

Amo. A. Feb 19, 2021     

Good app for sync time when your time system is broken.

Bai. M. Jan 25, 2022     

Great app Completed the issue of the time easily

Gra. B. Apr 26, 2020     

Good solution . A pity i cant get it to sync my phone. I may root my phone.

Kar. R. Jan 9, 2020     

Finally figured out why my phone time stayed off by 3 minutes. FIXED!