ClockSync

ClockSync is an essential tool designed to keep your device's system clock in perfect harmony with atomic time, leveraging the precision of the Network Time Protocol (NTP) from the internet. The app is particularly useful when your provider doesn't support NITZ, sends incorrect time or when your device exhibits significant clock drift.

For users with root access, ClockSync offers an automatic sync mode ensuring an exact time with an accuracy that can reach up to ~1-20ms. This mode is complemented by insightful statistics, such as average drift per day and total time corrected. Root access is necessitated by Android's security policy, which restricts user apps from setting the time.

For those without root access, the app operates in an assisted manual mode. This mode still provides automatic atomic time retrieval at intervals of your choosing and sends notifications when the time offset exceeds a specified threshold. It guides you through manual synchronization, suggesting what time/date to set. Precision is between 1 and 30 seconds—adjustable to 1 second if your device manages seconds on setting.

Additional features elevate the utility of ClockSync: customizable NTP/SNTP server and timeout, a detailed NTP server information dialog, time zone detection and adjustment based on geographic location, system time override, and an updated time zone database for optimal management. The interface is user-friendly, offering three color schemes, a choice between 12-hour or 24-hour clock formats, and optional haptic feedback.

For those requiring precise timekeeping—for synchronizing watches or other clocks—or for verifying the accuracy of a mobile device's time without the need to adjust it manually, the game stands out as a resourceful tool. If discrepancies arise after synchronization, they're likely due to outdated time zone data, which can be readily addressed with the application.

The capabilities of ClockSync assure prospective users of its reliability and utility in maintaining the accuracy of devices' timekeeping.