How do I tell which day my ads started running?

I submitted my ads on the 18th of this month and read that it could take up to 10 days before they started running in a thread on this forum. Well this weekend most all the ads I submitted hit. I was just wondering how I could tell which day they actually went through. Is there a report I can run that will tell me this? I'm just curious because right now it has the day I posted my ads as the day the campaigns started. How do I know if they hit on Friday at 11:30pm or whether they hit Monday morning at 4:00 am?

Ok so I have an idea of the day they started now. I ran a budget report with a custom date range. I can see the activity now, but I can't see the time they started. I'm not sure if this is even an option, but I would be curious to see when exactly they started.

I digress...All the ads I have running, run from Sunday - Thursday. I'm looking at this report right now and I have activity on Friday? I was thinking this was the day these ads were ok'ed, but I have a daily spend showing up. I double checked and they are not running Fridays. What might account for this?