What does "Tentative" mean in the news???

Hi, I would like to know what does "Tentative" mean in the new??? We can see it sometime instead of the time of the news.

And why certain folder are blue and other are gray?....

Thanks!

It means they are not sure what time the data is released.

Blue boxes mean there are items in the news section discussing that event.

Grey boxes -no news items

Thank you very much for the answers

I have another question.

Does someone know other site "like forex factory" that containt forex news "live", on their release, the way ForexFactory do?

Thanks!

http://www.fxstreet.web.id/economic-calendar/
you can change id to en so you will get english version

It usually means they haven't a clue

Hello
Why is the news of tomorrow's NFP in Tentative status?