Re : System Time Settings

The V5R3 SNTP client will support time adjustments of up to 120 minutes.
The default however is 20 minutes and can be controlled with the MAXADJ
parameter of CHGNTPA.

But you are correct -- having the wrong value for QTIMZON can cause
problems.  SNTP time adjustments just being one example.

Bruce Vining



                                                                           
             Adam Driver                                                   
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                                       Re : System Time Settings           
                                                                           
             02/01/2006 08:10                                              
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Tom,

I use QP1000AEST (Australian Eastern Standard Time) which is UTC +10, but
if I view the QTIMZON system value I see the following:
(Obviously we're in daylight savings time at the moment).

 System value . . . . . :   QTIMZON
 Description  . . . . . :   Time zone


 Time zone  . . . . . . :   QP1000AEST     Name


 Associated settings:
   Offset . . . . . :   +11:00
   Full name  . . . :   Australian Eastern Daylight Saving Time
   Abbreviated name :   AEDT


In your case I would probably try QN0800PST as I imagine it has the
daylight savings dates programmed in.

Also, I mentioned this in another mail but just incase you haven't seen it,
if you use SNTP it will fail if you have the wrong value for QTIMZON. The
system talks to the NTP sever in UTC time and can only make a adjustment of
up to an hour (actually I think it might be 59 mins). If your offset is
wrong the adjustment required will be more than an hour and will fail.

Thanks

Adam Driver
Technical Consultant
Kaz Technology Services
www.kaz-group.com
Phone: +61 2 9844 0386
Fax: +61 2 9281 5261

message: 7
date: Wed, 1 Feb 2006 10:59:52 -0800
from: Tom Jedrzejewicz <tomjedrz@xxxxxxxxx>
subject: System Time Settings

This is a more generic question, prompted by the discussion about the
Indiana conversion to DST.

My system is in California, which is Pacific Time.  I see three
available choices ...

QN0800PST - DST checked
QN0800U - DST checked
QN0800UTCS - No Daylight Saving Time

All three are at UTC -8:00.  The first two appear to be exactly the
same, except for the msg descriptions used to get the time
descriptions.  Are they, or am I missing something?

My system is currently set to the last (no DST) zone.  I have been
managing the DST change automatically using a program from Midrange
Computing magazine.  I gather that I can eliminate the use of that
program if I change the system time zone to one of the DST enabled
zones.

I also gather than I can use the TCP/IP SNTP service to synch my
system time automatically to an internet time server, and that the
system knows how to make the DST change and SNTP changes work together
so that the time stays correct.

Am I correct?

--
Tom Jedrzejewicz
tomjedrz@xxxxxxxxx

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