bios does not save the time

[darko]

Hello colleagues...
I have a computer with an Asrock QC5000M motherboard, which I am using with OPNsense.
The other day I noticed that the motherboard was not saving the date or time, so I proceeded to change the battery, set the date and time correctly and everything worked perfectly.
The next day I checked again that my internet was slow, I did a speed test and it didn't even reach 300megas... I looked again at the date and time of the bios and I realized that the date was correct, but the time was two hours late, I set it correctly and everything was fine, but the next day it was the same again...two hours late.
I put another battery and it was the same, two hours late... I looked at all the options in the bios and I don't see anything like an NTP server or anything like that.
No matter how much I configure the time, the next day it is set back two hours.
Can you help me with this issue???
Thanks and bye

[Fassou]

@darko From what you say, the board's clock is synchronized with UTC time, so it's likely that it's your OS that is "changing" the time, because you probably haven't specified that you want ours.

The official time in Spain is the same as the one called Central European, also known as CET, although now that we are in the summer time, it is called CEST (Central European Summer Time), which compared to the Universal Time Coordinated (UTC) is equivalent to UTC + 2

UTC is equivalent to GMT (Greenwich)

Salu2!

[darko]

Hello Fassou
Last night I changed the ntp servers that were set by default on OPNsense, and I reset the CMOS to its default settings.
I set the correct date and time, and this morning I went to check it and so far everything is correct.
I see that you mention that the operating system is changing the time for me, so it must have been that... since I saw that when I changed the NTP servers, it seems to work.
Many thanks Fassou for your help

[Clipper]

@darko
I had the same thing happen with a gigabyte motherboard and amd3+ micro, which is quite old, I thought it was the battery, but no... It was the W10 OS that was misconfigured.
My conclusion was that the OS shows you the time of the zone you set, not the BIOS.
Regards

[darko]

Well my joy is in a well... this afternoon I took another look and again two hours late.
Then I remembered that one day I touched the "Time Zone" option on the OPNsense firewall, and I set it to Europe/Madrid, since what came up as an option didn't add up.
I recovered a backup of OPNsense from March and applied it to the firewall and now the option I saw as odd comes up:
Etc/UTC
I applied it and now it works correctly.
Tomorrow I'll do another test and I'll tell you.
Bye for now!!!

[Fassou]

@darko I am on a team that has a bay with several disks with several operating systems, I observe that if it boots for example a Mint (Linux), it configures the motherboard's time in UTC, although the OS is configured CET/CEST and displays it correctly.

If I then boot a Windows, I see that Microsoft's takes the motherboard's time as the time for the OS, and you have to force a time synchronization to correct the 2-hour difference, or directly before booting, enter the BIOS and set it manually

Salu2!

[darko]

Hello friends
Well, for now everything is working correctly, since I applied that change in the firewall Etc/UTC, I have been two days that everything works well.
Now I do the internet speed tests and they come out correct, and I no longer have the downloads of 80 megs instead of the 300 megs.
Many thanks to all for your help.
bye