We sent an email campaign using the "recipient’s local time" option to some of our non-US contacts. However, I noticed that about 30% of contacts received their emails in my time zone (ET), which I’m guessing is a default for instances when the system is not able to figure out contact’s time zone.
I would like to append that data, but not sure how to identify when people were sent this particular email? I know that I can filter by date (i.e. opened email on Tuesday), but is there a way to do it by time (i.e opened an email at 9 am?)