is there anyway to find the current UTC by city

Question

Question

#DTL #ObjectScript #Health Connect #InterSystems IRIS for Health

We are using the IRIS cloud. and I am working on a DTL .

so the source side timestamp is local time for example 20240110134740, I know it is a local time. so the requirement is I need to append the UTC at the end, like -0400 or -0500 depending on if it is daylight saving time.

so is there function to return if current day is at daylight saving time, so I can decide if I need to append the -400 or -500? or a function to return the current UTC by location?

Product version: IRIS 2023.3

Discussion (3)2

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Lucas Cristofolini · Apr 25

I believe you'll have to set it manually because the value of $HOROLOG refers to the machine running the IRIS instance. You'll need to set the $ZTIMEZONE to your local time zone.

1 0

score 0 · Answer 1 · 2024-04-25T14:56:07-04:00

Hi @Yuhong Snyder

I think this documentation can help, TimeZone

Command:

$ZDATETIME($HOROLOG,8,5)

Output:

20240425T15:29:09-03:00

The -03:00 is because I'm in Brazil, daylight saving time is automatic
If you want to know if the time is in daylight saving time or not, you can use the

$SYSTEM.Util.IsDST(TimeStap).

score 0 · Answer 2 · 2024-04-25T15:12:28-04:00

Thank you. We just started so we are using cloud version.

Command:

$ZDATETIME($HOROLOG,8,5)

Output:

20240425T19:07:51+00:00

and for $SYSTEM.Util.IsDST()
the output is 0.

but our local time is on DST right now and it should be UTC -400.

since this is cloud version, do we need to setup something to be in sync with local time?

t=dst=0