seanbperiod Posted September 9, 2005 Share Posted September 9, 2005 i have a dual boot system running, and ive noticed that after everytime i run OSX, reboot, and go back into XP, the time changes to a few hours ahead.. has anyone else experienced this? Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/ Share on other sites More sharing options...
Lestat Posted September 9, 2005 Share Posted September 9, 2005 I have experienced same thing... Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14323 Share on other sites More sharing options...
kyc Posted September 9, 2005 Share Posted September 9, 2005 Happens here too. It's only midly irritating but I'd rather it not do that... confuses the heck out of me when I check the time on the taskbar sometimes. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14327 Share on other sites More sharing options...
macgirl Posted September 9, 2005 Share Posted September 9, 2005 Believe me, people, if you use search first... known issue, put one of your clocks with GMT. OS X with your Time Zone and XP on GMT or OS X with GMT and XP with your Time Zone, deal done. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14331 Share on other sites More sharing options...
ocstony Posted September 9, 2005 Share Posted September 9, 2005 me 2. But quite strange. I am using completely two harddisks. I will take away one hardisk if booting another os. The time will be nine hours behind. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14496 Share on other sites More sharing options...
Zeph Posted September 9, 2005 Share Posted September 9, 2005 The OS will Sync with the PC's RTC I wouldve thought. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14497 Share on other sites More sharing options...
bluedragon1971 Posted September 9, 2005 Share Posted September 9, 2005 Yep, I've had that problem too. Annoying as hell. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14522 Share on other sites More sharing options...
macgirl Posted September 9, 2005 Share Posted September 9, 2005 me 2. But quite strange. I am using completely two harddisks. I will take away one hardisk if booting another os. The time will be nine hours behind. Two hard disk is nothing to do with it, time is in the RTC not in the Disks. So you are GMT+9 or GMT-9? Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14699 Share on other sites More sharing options...
BSDIvi Posted September 10, 2005 Share Posted September 10, 2005 Long time ago .I used OPENSTEP + Windows same problem .. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14794 Share on other sites More sharing options...
domino Posted September 10, 2005 Share Posted September 10, 2005 Believe me, people, if you use search first... known issue, put one of your clocks with GMT. OS X with your Time Zone and XP on GMT or OS X with GMT and XP with your Time Zone, deal done. <{POST_SNAPBACK}> I set XP on GMT and Mac on my time. Restarted to both OS. XP time is stilled borked. But still set to GMT. I tried to go the other way and set Mac to GMT but I can't find GMT in Mac . I'm going to pst a trouble ticket over at Apple. I hope they can solve this problem Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14824 Share on other sites More sharing options...
grimy Posted September 10, 2005 Share Posted September 10, 2005 I think it has something to do with our hardware is missing the PRAM that macs have, i am guessing that the motherboards in the developer macs may have a PRAM area for storage of that info. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14833 Share on other sites More sharing options...
phoebus Posted September 10, 2005 Share Posted September 10, 2005 The problem is that MacOS, like many Unices, assumes that the RTC time and date is UTC, aka Greenwich Mean Time. Windows instead always assumes that it's local time. So if you don't live in Greenwich or in the same meridian you get the problem. One solution could be to program both windows and macos to synchronize with a ntp server at startup, if there is a permanent net access of course. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14836 Share on other sites More sharing options...
domino Posted September 10, 2005 Share Posted September 10, 2005 ... One solution could be to program both windows and macos to synchronize with a ntp server at startup, if there is a permanent net access of course. <{POST_SNAPBACK}> That's what I was using 2 days ago. The problem is, I haven't found a way for windows to check the NTP server at boot. We can however use a 3rd party application to run a check during the startup sequence but thats just more applications that needs to be installed just because Windows Time check doesn't collect the time when you reach your desktop. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14839 Share on other sites More sharing options...
phoebus Posted September 10, 2005 Share Posted September 10, 2005 That's what I was using 2 days ago. The problem is, I haven't found a way for windows to check the NTP server at boot. We can however use a 3rd party application to run a check during the startup sequence but thats just more applications that needs to be installed just because Windows Time check doesn't collect the time when you reach your desktop. <{POST_SNAPBACK}> You can sync at boot with this batch w32tm /resync exit using the ntp server defined in the clock settings (this works on XP) . Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14844 Share on other sites More sharing options...
domino Posted September 10, 2005 Share Posted September 10, 2005 Thanks for the batch file. Will load it on XP next time I log in. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14856 Share on other sites More sharing options...
seanbperiod Posted September 10, 2005 Author Share Posted September 10, 2005 ok.. where do you put the batch? Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14937 Share on other sites More sharing options...
domino Posted September 10, 2005 Share Posted September 10, 2005 ok.. where do you put the batch? <{POST_SNAPBACK}> Just drag it to your startup folder. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14944 Share on other sites More sharing options...
batitombo Posted September 10, 2005 Share Posted September 10, 2005 In ubuntu I fixed it in the boot folder , but in mac os!!!!!! I can't depend always on an internet connection, I have always, but its not relaible, your time in computer becomes totally dependant! Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-14990 Share on other sites More sharing options...
macgirl Posted September 11, 2005 Share Posted September 11, 2005 Here is a pic where one of GMT in the map Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-15115 Share on other sites More sharing options...
domino Posted September 11, 2005 Share Posted September 11, 2005 LOL. I was looking for Greewich, England. Thanks for the tip! Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-15131 Share on other sites More sharing options...
bluedragon1971 Posted September 12, 2005 Share Posted September 12, 2005 LOL. I was looking for Greewich, England. Thanks for the tip! <{POST_SNAPBACK}> I'm not quite positive, but I'm pretty sure London is on GMT as well. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-15460 Share on other sites More sharing options...
intradink Posted September 12, 2005 Share Posted September 12, 2005 I'm not quite positive, but I'm pretty sure London is on GMT as well. <{POST_SNAPBACK}> LOL..Greenwich is in London Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-15539 Share on other sites More sharing options...
domino Posted September 12, 2005 Share Posted September 12, 2005 Well see, there is something I do not understand. I can set a handfull of city/country as GMT. Hell, I can even set a country in SE Asia as GMT. I know there is something i'm missing here. Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-15562 Share on other sites More sharing options...
skn Posted October 10, 2005 Share Posted October 10, 2005 Hi guys! I found out the answer to instruct WinXP that the Real Time Clock (RTC) runs in Universal Time: http://www.cl.cam.ac.uk/~mgk25/mswish/ut-rtc.html All you have to do is create the following registry entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\RealTimeIsUniversal and set it to 1. Have fun! Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-21395 Share on other sites More sharing options...
DrJägermeister Posted October 10, 2005 Share Posted October 10, 2005 For german guys (2 hours difference between OSX & Suse Linux): put your OSX time zone to Island until Germany and you'll have the same time in Linux & OSX Link to comment https://www.insanelymac.com/forum/topic/2205-time-changes-in-xp-after-running-osx/#findComment-21411 Share on other sites More sharing options...
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