SubForm Formula/Date Field Autoupdate

SubForm Formula/Date Field Autoupdate

Hello, Is there a way to auto-update a date field inside a subform upon change? I tried using a formula field but it updates all the other lines as well.

From:
Test
Date / Formula Field
Test 1
11/24/2019 10:20 AM
Test 2
11/23/2019 09:19 AM

To:

TestDate / Formula Field
Test 1 Updated11/25/2019 09:46 AM
Test 211/23/2019 09:19 AM