It appears those times (Pacific Daylight Time) are when the events occur, not when we know about it via telemetry. I base this on the first listed event:

6:10 p.m. PDT - Spacecraft turns so its high-gain antenna can shield the craft from particles as it crosses Saturn's ring plane.

While it should be possible to receive some telemetry via a low-gain antenna, a lot of the events appear to happen while Cassini is on the other side of Saturn where it may not be possible to receive any data.

At midnight tonight PDT, Cassini is supposed to point the high gain antenna back towards Earth and begin transmitting data. The radio propagation delay will likely be somewhere around a few hours. I don't think we'll be getting data at midnight.

According to this source, "*If everything proceeds as planned, first images are expected July 1, at approximately 5 a.m."