lotus.notes.time.txt

`Lotus Notes Locations & DST  
  
Thomas Zehetbauer ([email protected])  
Thu, 8 Apr 1999 12:25:08 +0200   
  
--HlL+5n6rz5pIUxbD  
Content-Type: text/plain; charset=us-ascii  
  
Lotus Notes may under some circumstances silently change the System time. This happend here   
with "Location"="Office (Network)", "Local time zone"="Central European Time", and   
"Daylight savings time"="Not observed here". Because this could cause severe problems with   
any software that uses time stamping any application not specifically designed for time   
maintainance should prompt the user before tampering with the system time.  
  
Thomas  
  
Everybody wants to go to heaven, but nobody wants to die.  
-------------------------------------------------  
T h o m a s Z e h e t b a u e r ( TZ251 )  
PGP encrypted mail preferred - KeyID 96FFCB89  
mail [email protected]  
-------------------------------------------------  
  
--HlL+5n6rz5pIUxbD  
Content-Type: application/pgp-signature  
  
-----BEGIN PGP SIGNATURE-----  
Version: 2.6.3ia  
  
iQEVAgUBNwyEA2D1OYqW/8uJAQGsTwf7B7hTapwlTG7XKB2Sk/W0ofCYw7Ygv8mB  
tnVSzrxTKoaGlZEnDM4mwCZKNCMkN31rT1xBWUMeeDsozvA+U/O+qWxOFK5w1rGI  
JlxdoyOxuHUnR88aZemjWZ8tiR71mo0u7o8PzdvJCfZfmjU2Fltj6Bo3GFFmvEmb  
t2l+cVZWqQ03ED8+4soZ2oEsnKgSKnnbyvt2y6qqCpFAYI3QBMN5j93qMDOmA8Yw  
JhiOojnXpEE6xCtNXDX5fCH/pJrw2eFCZHQKkZX2K7s/JekTlInsfx1daU5nDvBt  
c/4dgmCShWLf/sF2BLAHN+YclPCYbR72E+t+sWitt06Wb+EUgwARcw==  
=GZBH  
-----END PGP SIGNATURE-----  
  
--HlL+5n6rz5pIUxbD--  
  
-----------------------------------------------------------------------------------  
  
GMT (Was: Re: Lotus Notes Locations & DST)  
  
Ken Williams ([email protected])  
Thu, 8 Apr 1999 16:27:03 -0400   
  
as somebody mentioned recently (i think on ntbugtraq?), i think all  
"mission critical" or "production" or [insert favorite buzzword here]  
apps, servers and networks should use GMT, and only GMT, to avoid such  
problems. NT4+SP4 apparently doesn't like daylite savings time in certain  
situations, so that's all the more reason to stick with GMT.  
  
Ken Williams  
[email protected]  
  
Packet Storm Security http://packetstorm.genocide2600.com/  
Trinux: Linux Security Toolkit http://www.trinux.org/ ftp://ftp.trinux.org  
PGP DH/DSS/RSA Public Keys http://packetstorm.genocide2600.com/pgpkey/  
E.H.A.P. VP & Head of Operations http://www.ehap.org/ [email protected]  
NCSU Computer Science http://www.csc.ncsu.edu/ [email protected]  
SHANG: Secure Highly Available Networking Group http://shang.csc.ncsu.edu/  
  
-----------------------------------------------------------------------------------  
  
Lotus Notes Locations & DST  
  
Anto Veldre ([email protected])  
Fri, 9 Apr 1999 09:54:41 +0300   
  
> T h o m a s Z e h e t b a u e r ( TZ251 )  
wrote:  
  
>Lotus Notes may under some circumstances silently change the System time.  
>This happend here with "Location"="Office (Network)", "Local time  
zone"="Central European Time", and "Daylight savings >time"="Not observed  
here".  
>Because this could cause severe problems with any software that uses time  
stamping any application not specifically >designed for time maintainance  
should prompt the user before tampering with the system time.  
>  
  
I am currently using the following Notes client program on my laptop:  
Lotus 4.6a [Intl] 21 November 1997.  
  
Some notes considering the summer time switching.  
"Observe Daylight savings" is checked in my Notes client,  
"Automatically adjust clock" is checked in "Control Panel->Date&Time"  
Operating system is Win95 OSR2.  
  
It happened last month that an important meeting was  
appointed ( 23 of March 1999 10:00 , local time). After switching  
to summer time (02:00 changed to 03:00 local time early morning  
at 23rd of March, automatically, by OS), the meeting moved +1 hour  
and appeared at 11:00.  
  
I checked this with another party of the meeting, he saw the same  
results on his PC. Luckily we both remebered the actual time....  
  
I use Notes calendar function too rarely to make some/other final  
conclusion.  
  
Anto Veldre,  
[email protected]  
  
-----------------------------------------------------------------------------------  
  
Re: Lotus Notes Locations & DST  
  
Peter Zuerrer ([email protected])  
Fri, 9 Apr 1999 10:41:20 +0200   
  
It may be worthwhile to verify that your Notes servers do correctly  
handle daylight savings time (DST). An additional parameter must be  
added to each server's NOTES.INI file to specify DST start and end dates  
in the country where the server is located. See the setting of the  
environment variable DSTLaw below. The syntax is somewhat similar to the  
TCP/IP TZ variable.  
  
In countries that observe DST, Notes clients must be set to observe DST.  
An additional parameter must be added to each user's NOTES.INI file to  
specify DST start and end dates in the user's country. See the setting  
of the environment variable DSTLaw below. The syntax is somewhat similar  
to the TCP/IP TZ variable.  
  
The following script opens the names file NAMES.NSF, looks for the  
locations documents in the database, and changes the flag controlling  
whether or not DST should be observed. The script could be placed in a  
button hotspot in a note and sent by the Notes administrator to all  
users...  
  
---------------------------------------------------------------------------  
----------------  
Sub Click(Source As Button)  
Dim session As New notessession  
Call session.SetEnvironmentVar( "DSTLaw", "3 -1 1 10 -1 1",1)  
Dim namevar As String  
namevar = session.getenvironmentstring("NAMES",1)  
If namevar = "" Then  
namevar = "names.nsf"  
End If  
Dim db As New notesdatabase ("",namevar)  
If db.isopen Then  
  
Dim view As NotesView  
Dim doc As NotesDocument  
  
Set view = db.GetView("Locations")  
Set doc = view.GetFirstDocument  
  
While Not(doc Is Nothing)  
  
doc.DST = "1"  
Call doc.Save( True, True )  
Set doc = view.GetNextDocument(doc)  
Wend  
Messagebox "All your Notes Locations have been set to Observe  
Daylight Saving",,"Daylight Savings Time"  
Else  
Messagebox "You do not have a Private Address Book named " +  
namevar,,"Daylight Savings Time"  
End If  
End Sub  
---------------------------------------------------------------------------  
----------------  
  
Peter Zuerrer  
  
`