How to format time in infopath function in sharepoint

I have sharepoint list and new list form is customized in Infopath. I have a datetime field column where I'm filling date and time. I have another single text column where I want to store time only from the value captured from above datetime column.

I'm using a rule type Action to set the value for my single text column and using substring function but I get weird format of time like T00:00:00. I want to get in the format as 12:00 AM or 11:30 PM etc.

How to format the date time and get time only in the above format
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David Johnson, CD, MVPOwnerCommented:
Don't use a substring because the original data is an number of seconds past the epoch use a data type of time

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buzzme123Author Commented:
Can I see an example of this?
buzzme123Author Commented:
No response on this yet. Please show me an example of how to format this?
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