is linux distros that when installing them and you reboot you press F12 to look at the clock in the BIOS and you see that the distro installer changed the time on the clock

hey linux distro developers & maintainers, QUIT adjusting the BIOS clock!!!, just dont do it!!! let the changes be made in the software. and window manager or desktop environment,

Maybe it's something to do with your hardware, (F12 gives me the boot options), my time never gets altered, no matter which distro, or BSD, I happen to be installing, on any of my 8 computers.

F12 gives me boot options too, it opens a menu that offers boot options from hard drive, cd/dvd drive or usb, also i can access the BIOS setup from the F12 menu

From the sounds of things. It sounds like a cmos battery is dying.

Dying cmos battery changes my hardware clock all the time. Simple fix for me is just 2019 it and leave the rest be < month, day >. Till it fails to boot again.

Just my experience with used gear.

the battery is fine, this happens on any of my desktops or laptops i own, it is linux distros especially european made distros like ubuntu will change the hardware clock from local time to UTC regardless of my choice of clock settings during the install, also this particular PC has a 12 hour clock, it does it with 24 hour clocks too, so i set all my PCs to local time regardless if it is a 12 hour or 24 hour clock, i dont use UTC/GMT and prefer to set the hardware clock to my local time

I am not sure how Ubuntu <spinoffs> or Mint rolls anymore. So I cannot say anything about them.

Stuff I run does not exhibit what you describe happens to you. So I will bow out of here.
Happy Trails, Rok

ubuntu is not my daily driver, but i do keep a spare drive installed for trying other distros because i dont want to wipe my regular distro off just to try something else, and recently i wanted to try something with wine which requires a multi-lib distro, and after i installed lubuntu i notice it adjusted my clock by 6 hours since i am -5 from UTC (US/Central) -6 in winter and it throws the clock off from my preferred setting and makes the clock wrong on my main distro i use everyday, it would be nice if they quit adjusting the BIOS hardware clock or at least make the choice to not touch the hardware clock when installing

i just tried antiX and it changed the BIOS clock too

Are you sure your BIOS UI isn’t just displaying UTC instead of reading the time zone?
Could there be some quirkinesses like that happening?

Just a thought...

Looks like this is the problem. Regular distros will set hw clock to UTC and you need to set your local timezone according to your location. In your cases based on this logic the hw clock is incorrectly set (to the actual local time), therefore linux will try to adjust it. (if I understand it well).

here you can read some additional info: https://unix.stackexchange.com/quest...te-and-hwclock or probably here: https://www.tldp.org/LDP/sag/html/keeping-time.html

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Are you duel booting with windows?

nope, there is not a windows PC in this house, i have two desktops and two laptops and they all have Linux,

i notice it is usually the debian based derivatives of European origin that will change the BIOS clock to UTC/GMT, i have resolved this issue, this is more of a rant than a problem to be solved anyway, thank you and goodnight

as i recall Microsoft has a patent on setting the bios clock to the LOCAL timezone

so to avoid infringing on that patent the time is set to UT

Hi,
What do you do when there are changes to local time? Eg summer/winter, or moving into another timezone? Do you reset the bios clock each time? If you have to move the clock back one hour then you may experience fun things like having files that are from the future. Just trying to wrap my head around this approach.

Evo2.

How do you know this?