Time problem

EAD · 2006-04-04 08:27:22

Hii, I know its a stregnth problem, but my clock in linux is very wired, sometimes after reset the time is +2 and then when going to windows is -2 or +2 and so on, even after I set it up to be right it does problems,How can set it up please?

gwine · 2006-04-04 08:58:23

CMOS battery ok?

Time setting in linux - # date MMDDhhmmYYYY

EAD · 2006-04-04 09:52:39

gwine wrote:

CMOS battery ok?
Time setting in linux - # date MMDDhhmmYYYY

Yes,its ok, what else?

jakob · 2006-04-04 17:53:01

lol, that remembers me of a problem I have still, too

I changed the Hardware-Clock to CEST and put TIMEZONE=

Then I deleted the symlink /etc/localtime ->/ushr/share/zoneinfo/Europe/Berlin and now I have the correct time shown...

Infinite · 2006-04-04 17:54:11

A simple BIOS check did it for me.

EAD · 2006-04-04 18:40:11

hellwoofa wrote:

lol, that remembers me of a problem I have still, too
I changed the Hardware-Clock to CEST and put TIMEZONE=
Then I deleted the symlink /etc/localtime ->/ushr/share/zoneinfo/Europe/Berlin and now I have the correct time shown...

What did you do?
explain me better please.

jakob · 2006-04-04 20:02:56

After checking my BIOS-clock (which showed the correct time)
I really was out of ideas, where the problem may be, and played a bit with the settings in /etc/rc.conf
I live in Germany, so GMT+2 is my timezone, I think....

I opened rc.conf and changed the following lines as you can see:

HARDWARECLOCK="localtime"
TIMEZONE=

Then I deleted the symlink /etc/localtime

When I issue date now, I get:
Di Apr 4 22:05:19 UTC 2006

Which means, that Linux "thinks" that I'm in UTC, but thats not true, I'm CET so this can't be the optimal solution. However, I got a correct time now which is more importatnt *g*

failure · 2006-04-05 05:43:49

KreCi wrote:

I have same problem since installed arch - have no idea why...

Me too, but i have installed ntp and solve it

Lone_Wolf · 2006-04-05 18:36:05

Berlin is on GMT + 1 , like most of western europe.

I had some problems with time also, but solved it like this :

HARDWARECLOCK="UTC"
TIMEZONE=Europe/Amsterdam

Amsterdam, like berlin is GMT + 1, so i changed the bios clock to 1 hour before my normal clock time.
Everything now shows the correct time, and the clock was corrected to summertime automatically.

NOTE : don't use this on a dual-boot system with M$.

T-Dawg · 2006-04-05 22:28:43

Lone_Wolf wrote:

Berlin is on GMT + 1 , like most of western europe.
I had some problems with time also, but solved it like this :
HARDWARECLOCK="UTC"
TIMEZONE=Europe/Amsterdam
Amsterdam, like berlin is GMT + 1, so i changed the bios clock to 1 hour before my normal clock time.
Everything now shows the correct time, and the clock was corrected to summertime automatically.

For the record after you set your system time using date or ntpdate or whatever, hwclock --utc --systohc will automatically set your bios clock without having to reboot or mess around in BIOS.

jakob · 2006-04-05 22:32:39

Haha, how complicated... but why did it work with my first install of Arch?

I don't understand it...

Isn't GMT now UTC? and UTC+1=CET (Central European Time) and in Summertime, CET=UTC+2?

So if i tell my rc.conf: "HARDWARECLOCK=CET" and set "TIMEZONE=CET" everything should be fine, but no, when I issue "date", I get 2 hours later than it actually is... args

T-Dawg · 2006-04-05 23:58:34

hellwoofa wrote:

Haha, how complicated... but why did it work with my first install of Arch?

I don't understand it...
Isn't GMT now UTC? and UTC+1=CET (Central European Time) and in Summertime, CET=UTC+2?
So if i tell my rc.conf: "HARDWARECLOCK=CET" and set "TIMEZONE=CET" everything should be fine, but no, when I issue "date", I get 2 hours later than it actually is... args

NO. HARDWARECLOCK has to be localtime or UTC, for you set it to UTC. TIMEZONE should represent your specific timezone. Its this setting that will automatically adjust daylight savings for you, as each location of the world will be at different times when it occurs. For me TIMEZONE=America/New_York
Look in /usr/share/zoneinfo for available timezones

jakob · 2006-04-06 05:59:12

This is all to weird for me. Why can't my BIOS have the clock set up in the timezone where I am? I don't put my wrist watch to UTC neither...

But thx for the explanation

T-Dawg · 2006-04-06 10:04:30

hellwoofa wrote:

This is all to weird for me. Why can't my BIOS have the clock set up in the timezone where I am? I don't put my wrist watch to UTC neither...
But thx for the explanation

Because your computer would have a difficult time communicating with another on the other side of the world.

Consider both our computers are set to localtime. Say I post a document on my webserver 5 minutes ago at 1:00AM localtime (my time), you, on the side of the world, read this document now and note the time -1:00AM. But there's a problem your timezone hasn't even hit 1:00AM yet, so how can this be?
Thats where UTC comes in. If your computer reads the time of my document posted in UTC, it will automatically know to adjust that time to -4 or whatever your timezone adjustment would be to reflect the proper time to you.

Hope that clears things up.

jakob · 2006-04-07 13:51:36

Hm I'm not too good in this complex thinking but I guess it makes sense

Thanks for your patience

bodhi.zazen · 2006-07-12 06:22:05

Try this

Install ntp (pacman -S ntp)
If you get an error re: /etc/ntp.conf it is OK to delete (or re-name) this file and install ntp.

As root, run these 2 commands:

ntpdate ntp.nasa.gov
hwclock -w

Should do the trick

Arch Linux

#1 2006-04-04 08:27:22

Time problem

#2 2006-04-04 08:58:23

Re: Time problem

#3 2006-04-04 09:52:39

Re: Time problem

#4 2006-04-04 17:53:01

Re: Time problem

#5 2006-04-04 17:54:11

Re: Time problem

#6 2006-04-04 18:40:11

Re: Time problem

#7 2006-04-04 20:02:56

Re: Time problem

#8 2006-04-05 05:43:49

Re: Time problem

#9 2006-04-05 18:36:05

Re: Time problem

#10 2006-04-05 22:28:43

Re: Time problem

#11 2006-04-05 22:32:39

Re: Time problem

#12 2006-04-05 23:58:34

Re: Time problem

#13 2006-04-06 05:59:12

Re: Time problem

#14 2006-04-06 10:04:30

Re: Time problem

#15 2006-04-07 13:51:36

Re: Time problem

#16 2006-07-12 06:22:05

Re: Time problem

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