What does "It's twenty minutes past the hour" mean in the CNN report , should be after or at the end of some particular topic.

Thank you!
CNN reports are international and cross many time zones. After a particular report the presenter will announce the time as being a number of minutes past “the hour” . “The hour” depends on the country or time zone of the listener.

For example – “It's twenty minutes past the hour” could be :-

In France 13:20

In the UK 12:20

In New York 07:20

Hope this helps