Logic Apps: How to set local date/time with UTC hour offset

In Azure Logic Apps I want to convert the UTC time.

If the UTC date/time is: 2023-10-30T18:31:05.123

I want to convert the UTC date/time to EST and format the date/time as: 2023-10-30T14:31:05.123-04:00

I've tried this: convertTimeZone(utcNow(),'UTC','Eastern Standard Time','yyyy-MM-ddTHH:mm:ss.fffzzz')

But the result is this: 2023-10-30T14:31:05.123+00:00

i.e. I'm not getting the correct UTC hour offset, it should be -04:00.

Solution

I have reproduced in my environment and below are my observations:

In Logic apps the connector gives us +00:00 even i have tried:

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You are going in right direction, getting the difference and then concatenating it and AFAIK, there is no other way to do so other than that(or by manually concatenating -4:00 at end):

Design:

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Output:

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