Hmm, that's weird. Is your column just a normal date field? Also, do you have the free airtable or pay a little monthly? I notice sometimes the free version is unable to do certain things but I feel like it would be able to do this.

 I've had this same issue in the past so I made a mock table. Is this what you would want your 2 tables to look like?

If you select include time under created time it should appear like this. Is this what you're wanting it to look like?

Hello,Are the people you have assigned in Table 2 records linked or just names?