Re: QTIMZON Question

that Windows displays UTC offset differently than IBM i - this is a
surprise?

- btw IBM Linux/Unix same as IBM i and <guess> Mainframe s well
most, but not all generic google requests about UTC offset referenced
Windoze docs, but some were ibm i (probably from my recent specific requests

IBM i help text specifically says the offset displayed is adjusted for
daylight savings. I can find no Windoze doc saying the same.

Offset
Contains the time difference between this time zone and Coordinated
Universal Time (UTC), specified in hours and minutes. A negative
difference indicates that the time zone is west of UTC and a
positive difference indicates that the time zone is east of UTC.
This is the offset that is currently used to determine local system
time.
*This value has been adjusted for Daylight Saving Time, if
necessary. *

IBM is treating UTC and "offset" as two separate values.. given the
craziness of various geographical areas opting in/out of daylight savings

Jim

On Sun, Aug 24, 2025 at 8:20 AM Brad Stone <bvstone@xxxxxxxxx> wrote:

My outlook calendar must be wrong then...

Outlook Calendar:
(UTC-06:00) Central Time (US & Canada)

Weird.



On Sat, Aug 23, 2025 at 2:14 PM Jim Franz <franz9000@xxxxxxxxx> wrote:

assume you have been here (some version of it)
https://www.ibm.com/docs/en/i/7.4.0?topic=management-managing-time-zones
and https://www.ibm.com/docs/en/ssw_ibm_i_74/pdf/rzatipdf.pdf - time
management

Before you think of changing offset - need to understand how daylight
saving time works

I'm is EST (NC) with an offset = 04.00 so your Central 05.00 seems right
(assuming you are in Daylight Savings ...


Display System Value
System value . . . . . : QTIMZON
Description . . . . . : Time zone
Time zone . . . . . . : QN0500EST3 Name
Associated settings:
Offset . . . . . : -04:00
Full name . . . : Eastern Daylight Time
Abbreviated name : EDT

jim franz

On Sat, Aug 23, 2025 at 10:28 AM Brad Stone <bvstone@xxxxxxxxx> wrote:

I am working on a cloud system. The QTIMZON is set to :

System value . . . . . : QTIMZON
Description . . . . . : Time zone
Time zone . . . . . . : QN0600CST Name
Associated settings:
Offset . . . . . : -05:00
Full name . . . : Central Daylight Time
Abbreviated name : CDT

System value . . . . . : QUTCOFFSET
Description . . . . . : Coordinated universal time offset

Offset . . . . . . . . : -05:00 -24:00 to +24:00

Now, I am in MN and the offset I believe should be -06:00 for DST right
now. I tried changing things and the offset stays at -05:00.

Is there some other setting I'm missing?

Bradley V. Stone
www.bvstools.com
Native IBM i e-Mail solutions for Microsoft Office 365, Gmail, or any

Cloud

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