[Info-vax] TCPIP$NTP on OpenVMS VAX 7.3

[JKB]

Le 08-11-2022, Stephen Hoffman <seaohveh at hoffmanlabs.invalid> a écrit :
> On 2022-11-08 21:16:01 +0000, JKB said:
>
>>  Please note in logfile _8 Nov 21:07:50_ and not _8 Nov 22:07:50_.
>> 
>> 	My system is configured with CET/daylight saving and I don't
>> 	understand why I have a difference between "show time" and
>> 	timestamps written in logfile.
>
> Timekeeping on newer versions of OpenVMS is problematic. Older 
> versions, even more so. You're definitely running old Olson rules, too. 
> This stuff got less bad in the V8 range.
>
> Per the VMS FAQ: "If your local OpenVMS system time is off by one hour 
> (or whatever the local DST change) for some or all applications, you 
> probably need to reset your local TDF. (For related details, please see 
> sections Section 4.4 and Section 10.22.1.)..."
>
> I'd suggest treating this and older older boxes as being permanently 
> set to UTC.  If you don't want to do that, there are instructions 
> around for manually updating the timezone rules. And there'll probably 
> still be issues. Maybe reboot over the time change.

	Thanks a lot for your explanations. I have set a new time
	configuration without TIMEZONE but only with TDF :
	- Time Differential Factor: 1:00
	- time adjustment value: 0:00

	and it seems to run as expected. I suppose something is broken in
	TIMEZONE.

	Best regards,

	JKB

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