Time Sync

Custom NTP/NTS Server
2.5 MB - Updated March 2026

Change your Android NTPS atomic clock server.
Add multiple fallback servers. Change resync intervals. No root. Persistent across boot. Powered by Shizuku.

Your phone is silently syncing its clock to a server you never chose, quietly trusting invisible infrastructure with every timestamp, every file, every moment you create. Time Sync puts that power back in your hands — route through Cloudflare's NTS-secured server, the independent NTP Pool, or your own, and take back the device that was supposed to work for you.

Time Sync was the first app released by the PALEOS.IO team. It was made to allow users to sync their android devices to multiple community NTP and NTS servers (if using Android 14+) with a fallback to custom single server (all other versions of android).

By routing your device's time synchronization away from default corporate NTP servers to trusted, privacy-respecting alternatives — such as Cloudflare or community pool servers — Time Sync reduces your exposure to passive telemetry and keeps your device's clock tethered to infrastructure you actually trust. Precise, reliable timekeeping also means your timestamps, scheduled posts, recording sessions, and file exports are always accurate, so you spend less mental energy second-guessing your tools and more time creating.

Disclaimer: This app requires Shizuku to be installed and running during initial setup. After you have made your app settings, they stay persistent across reboots.

Frequently asked questions

Do I need to root my phone to use this app?

No. Time Sync requires no root access whatsoever. It uses Shizuku, a free app available on the Play Store, which grants ADB-level privileges through Android's built-in Wireless Debugging feature. As long as you have Android 11 or higher and Developer Options enabled, you can use Time Sync on a completely stock, unmodified device.

What happens if I apply a server that is offline or unreachable?

Time Sync writes your chosen server to Android's NTP configuration, but it does not test connectivity to the server itself — that is handled by Android's time service. If the server you configure is unreachable, Android will simply fail to sync and your device clock will continue running from its last known accurate time. It will not crash or cause errors. You can always tap "Reset to Default" to restore Android's original server (time.android.com) and return to normal behavior.

Will this setting survive a reboot?

Yes. The NTP server setting is written to Android's global settings database, which persists after restarting your device. Your configured server will remain active until you change it or perform a factory reset. Your server list within the app is also saved locally and will be restored exactly as you left it the next time you open Time Sync.

What is an NTP server and why does it matter which one my phone uses?

NTP stands for Network Time Protocol — it is the system your phone uses to synchronise its internal clock with a reference time source on the internet. By default, Android points every device to a server chosen by Google or your device manufacturer, which you never agreed to and likely never thought about. That server logs your device's IP address every time your phone checks the time, creating a passive data touchpoint that runs silently in the background. Beyond privacy, the choice of server also affects accuracy and security — some servers support Network Time Security (NTS), a modern authentication layer that protects your device against time-spoofing attacks, where a malicious actor manipulates your clock to bypass certificate expiry checks or forge timestamps on your files. Choosing a trusted, high-accuracy server is a small change with real consequences for both your privacy and the integrity of your device.

Does this app connect to the internet or collect any data?

No, on both counts. Time Sync has no internet permission declared in its manifest and is architecturally incapable of making any network connection — it cannot reach the internet, your local network, or a VPN tunnel. It collects no data, contains no analytics, no crash reporting, no ads, and no trackers of any kind. Your server list and settings are stored locally on your device only and never leave it.

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Which NTP server should I use?

It depends on your priorities. For the best combination of privacy and accuracy, Cloudflare (time.cloudflare.com) is widely recommended — it supports Network Time Security (NTS), which authenticates time responses and protects against spoofing attacks. For redundancy, pairing it with pool.ntp.org or time.google.com as a fallback gives you solid coverage. If you are on Android 14 or higher, Time Sync supports a full multi-server fallback list so you can configure several servers in priority order. The app includes 30 pre-loaded server options with NTS and SMEAR tags to help you make an informed choice.