Max Time in Child Records

You can make a Duration field 

[my time of day field] - ToTimeOf Day("12:00 am")

I'm assuming that you can do a summary Maximum on that. Then if you need to convert that back to a time of day field you could make a new field 

ToTimestamp(Today(), ToTimeOfDay("12:00 am")) + [My summary Max duration field]

- ToTimestamp(Today(), ToTimeOfDay("12:00 am"))

I don't think you are allowed to add duration to a time of day field.  It's a vague memory but I did not have time to test.

.

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Mark Shnier (Your Quickbase Coach)
mark.shnier@gmail.com
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Mike,

I tested @Mark Shnier (Your Quickbase Coach)'s suggestion.

Here is my Child Table Data



Then my Parent Record sees this

So then the last step is to convert the Duration back into Time on the Parent Record with a second Formula field. 

Good suggestion by Mark as always.  I will have to remember this for the future.



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Don Larson
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