Is there a way to find out the exact time a transaction was confirmed?
Yes, of course.
Actually: no! There is no "exact" time in Bitcoin, there's a "block time" and a "received time", but those can vary between nodes. Sometimes the previous block has a later time than the current block.
Blockchair should show you the confirmation time.
This is of course a pretty good estimate most of the time.
Can you give me an example?
Look up
a transaction, check on the left:
3 days ago Sep 22, 2023 6:13 PM UTC