Bellaw0730

So this is my first time flying with united and using farelock. I did a 7 day lock for a roundtrip from Nashville to San Francisco. I'm located in Georgia. I locked the fare at about noon today 8/23..Well my confirmation email says it will end at 12pm on 8/30, but I went online and also looked at the reservation a few hours later on the official website and it says the lock will expire at 4:08pm on the 8/30. But then I also looked on my app and it says it will lock at 11:08am on 8/30..Which one do I go by???

I even called United and the agent said the information she was given from her support said the 4:08pm on 8/30 was the correct one, and I inquired if it was central time(nashville) or eastern(Georgia) and she said nashville time.

All I know is I'm very confused about how to time paying for my reservation on the 30th. Anyone else have these problems?