Date/time doesn't agree with detail article

[kwinieck]

On May 19, 2016 4:04 PM, the Headline is:
Greece denies Cairo's claim that EgyptAir debris found...
USATODAY.com TopNews - Yesterday at 10:59 PM

When I double-click to open that article in Safari, it says:
Doug Stanglin, USA TODAY 3:32 p.m. EDT May 19, 2016

Why the big discrepancy between the date/time in the headline and that in the article itself?

[barijaona]

I guess that story has been updated often, but only the date/time of iniitial publication is available in the RSS feed.

RSS/Atom specifications allow publishers to provide additional information about date/time of last modification, but USAToday does not provide this information.