Re: Time Sync
From: Alex Nichol (alexn.mvpdts_at_ntlworld.delete.com)
Date: 07/23/04
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Date: Fri, 23 Jul 2004 16:02:59 +0100
Lanwench [MVP - Exchange] wrote:
>The clock is the clock is the clock....it's the system BIOS clock; Windows
>doesn't have a separate one.
That is misleading. Windows keeps its own time, set initially from the
BIOS clock at boot, and then maintained by counting timer interrupts.
It is because it sometimes gets the wrong idea about interval between
these that you get the windows clock running at a very bad rate. And
the answer to that is *not* the motherboard battery, as we get rather
tired of saying here. Provided the errors are within limits, the
Internet Time sync will calculate the actual interval and adjust things
for it, so that the clock runs at correct rate.
The Windows clock updates the BIOS one when you set time manually, and
at shut-down: I presume it does at an Internet sync, but cannot be
certain of that one
-- Alex Nichol MS MVP (Windows Technologies) Bournemouth, U.K. Alexn@mvps.D8E8L.org (remove the D8 bit)
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