Matthew Saltzman wrote/ha scritto, On/il 29/03/2004 01:13:
Matthew...tnx for your clear explanations.
The permission issue referred to elsewhere notwithstanding (I haven't run into it), I think what happens is this:
Case 1: The hardware clock is local time.
- Windows: Windows always displays proper local time. If powered on at 2am on time change night, Windows adjusts the system clock and the hardware clock. If powered off at 2am, Windows adjusts both clocks on next bootup, so you had better not adjust the hardware clock when booting. (I think auto correction can be turned off in the clock config screen.) I think that any attempt to set the system clock in Windows will reset the hardware clock as well.
- Linux: /etc/sysconfig/clock has UTC=no. Then Linux displays the correct time before the change. If powered up at change time, Linux adjusts automatically and displays the correct system time. When next rebooted, the correct system time is saved to the hardware clock. If powered off at change time, Linux will assume the local clock is correct, so you had better adjust it before booting. If you do adjust the clock, then the first boot of Windows after the change will incorrectly attempt to adjust the already adjusted clock (unless disabled).
Case 2: The hardware clock is UTC.
- Linux: /etc/sysconfig/clock contains UTC=yes. System clock will always show correct local time no matter what. Hardware clock will be set to UTC on shutdown/reboot.
- Windows: Can't handle a UTC hardware clock unless the Windows timezone is GMT with no daylight adjustment.
I don't boot into Windows often, so my current solution is to leave the hardware clock in UTC and set the Windows's timezone to GMT with no DST adjustment. I think the only problem with this arrangement is that the Windows system doesn't display the correct local time. So I wear a watch.
I switched to case 2 and bought a new watch!!! ;-) in case I use Windows
-- Antonio Montagnani ======================================================= Working with Mozilla 1.6 on Linux Fedora Core 1 ======================================================= Utilizzo Mozilla 1.6 su Linux Fedora Core 1 =======================================================
