It look to me like the 2331 is the local time in 24hr time.

If it took place a 8:20 am, that would be 0820. If this was in the same timezone then the timestamp of the article would be 15 or so hours after the event. Not a problem.

If that 2331 was intended to be Z or GMT then that was just a little les than an hour before the event. Typically, people don't timestamp articles in GMT unless it indicates GMT like:

23:31 GMT


Most often, though, the timestamp will indicate the timezone, like:

23:31 Eastern or 23:31 EDT or 23:31 CST

Don't know for sure but I'm not suspicious. What I am thankful for is the watchful eye of your friend who pointed this out. Good call in noticing this!

...just happens not to matter THIS TIME. Keep a sharp eye out.

One person above asked, "Why would they expose themselves?"

I'll tell you why: They are desperate and incompetent and they think we are all stupid so it won't matter. ...and since we believe lie after lie after lie after lie, maybe they are correct.