u/Defiant-Ad-1108

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Hi, I noticed a weird issue with my Windows clock on a relatively new PC (about 6 months old).

A few hours ago my system time was around 20+ seconds behind. I manually clicked “Sync now” in Windows settings and it instantly fixed itself.

Now the time is mostly accurate, but I still notice small drift over time on Time.is (sometimes 0.5s, sometimes 2–5s after some time passes). If I sync again, it becomes accurate again.

Things worth mentioning:

- PC works perfectly otherwise

- no BSODs, crashes, freezes, or instability

- BIOS settings are not resetting

- date/time never fully resets

- issue seems related only to time synchronization/drift

I recently realized Windows Time service maybe wasn’t syncing automatically for a while.

Could this just be Windows 11 / NTP sync weirdness or Fast Startup behavior? Or is this more likely a CMOS battery / motherboard RTC issue even though the PC is only ~6 months old?

Specs:

- Ryzen 5 5600

- RTX 5060 Ti 16GB

- 32GB RAM

- Windows 11

Any ideas appreciated.

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Hi, I have a pretty new PC (around 6 months old) and I noticed something weird with the system clock.

At one point my Windows time was around 23 seconds behind. I synced it manually and it went back to normal, but after restarting/shutting down the PC I still sometimes notice small differences on Time.is — usually around 0.5–2 seconds.

What’s weird is:

the PC works completely fine otherwise,

no crashes, BSODs, freezes, or BIOS resets,

date/time never fully resets,

it’s just small drifting/inaccuracy.

I also recently stopped fully cutting power from the PSU strip and was only shutting down Windows normally.

Could this just be Windows time sync being weird, Fast Startup, or NTP drift? Or should I actually worry about CMOS battery/motherboard issues even though the PC is only half a year old?

Specs:

Ryzen 5 5600

RTX 5060 Ti 16GB

32GB RAM

Windows 11