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Power Platform Community / Forums / Power Automate / Excel dates to ISO 860...
Power Automate
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Excel dates to ISO 8601 isn't working

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Posted on by 39

Hi,
I have an issue with using excel dates in my flow, for the past hours I have read many posts here but non had my issue.

In the "list row present in table" I have changed the date format to ISO 8601.
And still when I'm running the flow and trying to use a formula like  convert date the response is that the input is not in ISO 8601.
So I tried the add days function

addDays('1900-1-1',int(items('Apply_to_each')?['Billing start Date']),'mm/dd/yyyy')

And the output I receive is very weird:

Moshema_0-1669199514242.png

I have tried to use the function:

addDays('1899-12-30',int(items('Apply_to_each')?['Billing start Date']),'mm/dd/yyyy')
as well and the output still was not ok ( it was 00/01/2002)

Can someone please help me?
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  • Verified answer
    Moshema Profile Picture
    39 on at

    The solution was like that:
    First of all, compose to set the Excel base time:

    Moshema_0-1669271606751.png

    formatDateTime('12-30-1900','MM-dd-yyyy')
    Then using the Add date component:
    Moshema_1-1669271671065.png

    Where the base date is the composed base time from excel (always 12-30-1899)

    Then converting the time from the add date to an ISO 8601 format

    Moshema_2-1669271763608.png
    formatDateTime(body('Add_to_time'),'yyyy-MM-ddTHH:mm:ss.0000000Z')

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