here's something i heard on the radio when the hosts were talking about Pride and the lyrics. what if it was morning Dublin time on April 4 when he was shot? i know nothing bout the time zones etc i just thought that would be interesting.
I was about to dispute you on this that it wouldn't be early morning there (I have UK friends and being in the EST they're 5 hours ahead of me, so 6pm my time is 11pm theirs). However, King was assassinated in Memphis, which is in the CST time zone. That's 6 hours behind Dublin's timezone. So 6:01pm CST is 12:01am Dublin time. HOWEVER, that's technically the next day, so King would have been killed on April 5 in Dublin, but April 4 in Memphis.
It's an interesting explanation, but technically that explanation wouldn't work. I think more likely is Bono simply confused the times and when he realized his error (after the recording) he changed to the correct time for live performances. Hence why he says "early evening" when playing the song live.
Someone else mentioned morning being easier to say/better flow than evening. I don't agree with that. I've sung this song many times before and evening sounds just as good as morning, in terms of the song flow.