After resuming my system today I noticed that the system time was off.

By 16 years...
$ date

Wed Jul  3 23:09:23 CEST 2024
The kernel log clearly shows the jump happening during a resume:

Sep 10 15:31:41 aragorn kernel: PM: Finishing wakeup.

Sep 10 15:31:41 aragorn kernel: Restarting tasks ... done.

Sep 10 15:31:41 aragorn kernel: wlan0: authenticate with AP 00:14:c1:38:e5:15

Sep 10 15:31:41 aragorn kernel: PM: Adding info for No Bus:vcs63

Sep 10 15:31:41 aragorn kernel: PM: Adding info for No Bus:vcsa63

Sep 10 15:31:41 aragorn kernel: wlan0: authenticated

Sep 10 15:31:41 aragorn kernel: wlan0: associate with AP 00:14:c1:38:e5:15

Sep 10 15:31:41 aragorn kernel: wlan0: RX ReassocResp from 00:14:c1:38:e5:15 (capab=0x411 status=0 aid=1)

Sep 10 15:31:41 aragorn kernel: wlan0: associated

Sep 10 15:31:41 aragorn kernel: PM: Removing info for No Bus:vcs63

Sep 10 15:31:41 aragorn kernel: PM: Removing info for No Bus:vcsa63

Jul  3 23:09:08 aragorn kernel: wlan0: deauthenticated

Jul  3 23:09:09 aragorn kernel: wlan0: authenticate with AP 00:14:c1:38:e5:15

Jul  3 23:09:09 aragorn kernel: wlan0: authenticated

Jul  3 23:09:09 aragorn kernel: wlan0: associate with AP 00:14:c1:38:e5:15

Jul  3 23:09:09 aragorn kernel: wlan0: RX ReassocResp from 00:14:c1:38:e5:15 (capab=0x411 status=0 aid=1)

Jul  3 23:09:09 aragorn kernel: wlan0: associated
I can find no other clues about the jump in my logs.
Running 2.6.27-rc6. Clock source is hpet.

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