[tman07]

Hey all,
Whenever i boot into windows 7 (which is rare) via bootcamp, my time gets all messed up. I dont know if i hit the wrong time zone or whatever installing windows 7, but whenever i go back into os x its a few hours off.

Im thinking that it has something to do with the efi?(bio's equivilent.. i know there is no bios, but whatever its called in os x). Maybe the system time is off?
The problem is I dont know how to get into it to fix it.

If you could help a fella out, i would really appreciate it!

thanks!

tj

edit: I have set windows 7 to the correct time zone, but it still happens. time is correct in 7 when i boot into it, when i go back to os x, its messed up.

[besson3c]

Why not just use NTP on both sides?

[tman07]

NTP?

sorry.... im still learning about this beast.

[besson3c]

network time protocol, using an NTP server to set your clock.

[tman07]

ohh, i'll look into that.

i do, however already have it set to automatically sync up with time servers (time.apple.com) and whatever microsoft uses. it still was wrong tho....

[besson3c]

Then you are already using NTP... Does the clock eventually reset itself? Are your timezones set correctly?

[tman07]

I have been manually fixing the clock in OS X (uncheck the sync, fix the time, recheck the sync), probably not giving enough time for it to resync and fix itself...

I'll let it do it itself next time.

Thanks for your help, besson!

[mduell]

Windows stores the time in the computers clock as the local time. OS X stores the time in the computers clock as UTC.

The easiest solution is to set the timezone in Windows to GMT.

[tman07]

Ok, so I went into windows, and now I'm back in OS X. Been here for about an hour, and the time has yet to change. It says 1:40pm when its 6:40...

Im lost. Both time zones are right EST, and it was right before I went into windows. I also locked the clock (hit the lock button in the lower left of the window, and it is now unlocked after going back into OS X)

So yeah, still no luck.

[ibook_steve]

The lock has nothing to do with it. That's just to prevent changes to system preferences.

If the time zone is set correctly and you have "Set date and time automatically" turned on in the "Date & Time" tab in the preferences, OS X should pull the time from the NTP server you have selected there.

Stupid questions: Which OS are you running (Tiger, Leopard)? Do you have all updates installed? Are you behind a firewall or proxy server (perhaps on your network at work) that may be blocking NTP requests?

Steve

[tman07]

Sorry, should have stated this earlier-
Leopard 10.5.6 on my new aluminum macbook

I am my school's network.. so that may be a possibility. I'll find out tomorrow when i go home for the evening.

Thanks for the help so far!

[ghporter]

This is an old and pesky issue. Windows likes hardware time to be local time, OS X (like every other Unix-like OS) likes it to be GMT. You boot into Windows and you're off by several hours (because Windows reads the hardware clock as local time), so you update the time. Then you reboot into OS X, and the clock is off in the opposite direction, and you update the time again... Why not just set Windows' timezone to GMT and stopp worrying?

[tman07]

you know what ghporter,
that sounds like a grand idea. thanks

[ebuddy]

Originally Posted by tman07 

Ok, so I went into windows, and now I'm back in OS X. Been here for about an hour, and the time has yet to change. It says 1:40pm when its 6:40...

Im lost. Both time zones are right EST, and it was right before I went into windows. I also locked the clock (hit the lock button in the lower left of the window, and it is now unlocked after going back into OS X)

So yeah, still no luck.

It was 5:42 PM when you posted saying it was 6:40 PM. Your problems are worse than I thought.