Forum Discussion
Windows 11: System Clock Losing Exactly 7 Minutes per Day
My Windows 11 system clock is losing exactly 7 minutes every single day, and I have to manually correct it each morning. This happens consistently regardless of whether I have the time sync feature enabled, and I'm wondering if anyone else has encountered this specific issue or knows what might be causing it.
3 Replies
Windows maintains two time sources — the RTC (Real-Time Clock) powered by the CMOS battery (used when the PC is off), and the system clock maintained by the OS while running. At boot, Windows reads the RTC, then periodically adjusts the system clock using NTP (Network Time Protocol).
Windows doesn't sync your clock with an internet time server constantly. By default, it might only do it every few days, or even up to 9 hours in newer versions.
If the time is always wrong right after you boot the PC, even before you connect to the internet, this is very likely the problem.
