On Tue, Mar 5, 2024 at 7:07 PM hlyg <hlyg2023@outlook.com> wrote: > > [...] > > Windows shall not cause problem, i rarely use Windows > > i don't know if ntp is running, what's default configuration by deb11 > amd64 installer? If you are dual booting Linux and Windows, then see <https://wiki.debian.org/DateTime#Windows_Dual_Boot_Strategy>. Jeff