Re: [HTCondor-users] Time zones for Crondor?

[Mark Coatsworth <coatsworth@xxxxxxxxxxx>]

Hi Michael,

I think the most straightforward approach here is to modify your
cron_hour value on the submission side. We don't have a special
CronTimezone attribute unfortunately.

If we know the CM system is set to UTC, could we take the difference
between local time and UTC and append that to cron_hour? Something to
the tune of the following:

cron_hour = <start_hour> + (utcTime - localTime)/3600

Of course this wouldn't wrap around over days. One way to do this
would be to apply the difference to your local time and then extract
the hour.

Do you think that would work? If that seems sufficient I can try to
come up with a classad expression.

Mark

On Thu, Nov 4, 2021 at 1:18 PM Michael Pelletier via HTCondor-users
<htcondor-users@xxxxxxxxxxx> wrote:
>
> Hi folks,
>
>
>
> I have my systems set to use UTC time so that thereâs no DST adjustments needed for the system logs, thus avoiding double 2:30am log records in the springtime. The users have their TZ variable set so they see the local time zone. However, this means that the cron_hour/CronHour is interpreted in the UTC time zone, so if they submit something to 6:00am, it shows up as either 1:00am or 2:00am depending on the time of year.
>
>
>
> Iâd like to see if thereâs a way to handle this such that the DeferralTime calculation uses a specified time zone for the submitter, rather than the CMâs system time zone. Iâm thinking maybe a ClassAd expression could be used to set the CronHour based on the desired time zoneâ not sure yet.
>
>
>
> Does anyone have any suggestions? Or is there maybe an undocumented CronTimezone attribute? Maybe I can do something with absTime?
>
>
>
> Thanks!
>
>
>
> Michael V Pelletier
>
> Principal Engineer
>
>
> C: +1 339.293.9149
> michael.v.pelletier@xxxxxxx
>
>
> Raytheon Technologies
>
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--
Mark Coatsworth
Systems Programmer
Center for High Throughput Computing
Department of Computer Sciences
University of Wisconsin-Madison