I'm trying to create an all-day event on a outlook calendar based on a Forms submission.
The original template included timezone conversions- I tried converting from UTC to EST, based on another thread from here, but the flow kept failing the timezone conversion.
I then tried to by-pass time zone conversion from another thread (below are the expressions I copied into start and end date/times)
If I have to include a timezone I can- it's just not permanent to the output.

concat(formatDateTime(addDays(utcNow(),1),'yyyy-MM-dd'),'T11:30:00')
concat(formatDateTime(addDays(utcNow(),1),'yyyy-MM-dd'),'T12:00:00')