How Does Windows Keep Accurate Time Without Internet Connection?

Discover how Windows tracks time using the Real-Time Clock hardware, even offline.

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Windows keeps track of time using the Real-Time Clock (RTC) in your computer’s hardware. The RTC is powered by a small battery, which allows it to maintain the correct time even when the computer is turned off or disconnected from the internet. Periodically, Windows will sync with internet time servers to ensure the RTC remains accurate.

FAQs & Answers

  1. What role does the Real-Time Clock play in computers? The Real-Time Clock (RTC) maintains the current time and date even when the computer is powered off using a small battery.
  2. How often does Windows sync time with internet servers? Windows periodically syncs with internet time servers to ensure the RTC remains accurate, usually at regular intervals.
  3. Can I manually set the time in Windows? Yes, you can manually set the time in Windows through the Date and Time settings in the Control Panel.
  4. What happens if the RTC battery dies? If the RTC battery dies, your computer will lose track of time when powered off and you may need to reset the time and date manually.