From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sat,  9 Sep 1995 07:11:55 -0400
From: forsyth@plan9.cs.york.ac.uk forsyth@plan9.cs.york.ac.uk
Subject: date command (Another question ? _o_ )
Topicbox-Message-UUID: 226df2de-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19950909111155.13RUqwcFIQRXt-uCynRIIBo_NtwAs2GztXf2HketMXU@z>

>>After I applied above, and did the date command, I got a future time
>>like this:
>>      Sun Sep 10 03:36:55 JST 1995.
>>I dispatched the date command at
>>      Sat Sep  9 18:36:55.
>>It's 9 hours ahead now.
>>Kenji


	Plan 9 uses GMT as its time base, while DOS uses local time, so unless you live on the
	prime meridian you'll need to reset your DOS clock after running Plan 9.

(from ``The Various Ports'')

i suspect you have to reset it before running plan 9, too...
Plan 9 takes the contents of the hardware clock to be GMT.
DOS has set it to GMT+9 (your local time), Plan 9 takes that as GMT, then
date is encouraged by the JST timezone file entry to add another 32400 seconds:
thus GMT+9+9 and you end up in tomorrow.