Timezone Updater

Timezone Updater keeps your device's time zone data current and accurate. If you've noticed time discrepancies in Android or specific applications, this app resolves those issues by downloading and installing the latest timezone and ICU data to your system.

The app is designed for users who need precise timekeeping across their device and installed apps. Time zone inaccuracies can affect scheduling, calendar entries, and location-based services — Timezone Updater eliminates these problems by syncing your device to current timezone definitions.

To use the app, you'll need superuser (root) access on your device and BusyBox installed. The update process is straightforward: verify your internet connection, tap the UPDATE button, and restart your device once the timezone data has been refreshed. The app handles both timezone information and ICU (International Components for Unicode) data in a single operation.

Before running an update, backing up your Android system is recommended as a precaution. Timezone Updater is free to download and use, distributed under the GPLv3 license. The source code is publicly available for developers who want to review or contribute to the project.

Whether you're troubleshooting time display problems, preparing for travel across regions, or maintaining system accuracy for time-sensitive applications, Timezone Updater addresses the root cause by updating your device's timezone database to the latest version. Once installed and updated, the changes persist across reboots and app updates.