Indexing date from a field with two entries

I am parsing a log file and got to a point where I have this field:


I can't seem to preform a date filter on it in any way, I've tried different configurations and nothing. I also couldn't find a way to merge the two entries into one.
any help will be greatly appreciated : )

See below on how to merge fields. To access the elements of the array you have, use %{[Date][0]} and %{[Date][1]}.

great, much appreciated!