Hello Everyone!
I have problem with K2.
I write an article and set it to automatically publish at a certain date and time. Also set the “Publish” status to “Yes” and Set start and end publishing dates. But it still publish my article even I set start publish date has not arrived yet. But when I click on that article, it displays "404-Error: 404" or Message:
"404Oops, you've encountered an error
It appears the page you were looking for doesn't exist. Sorry about that.
Home Page | Contact Webmaster"

Are you using SEF?
Did you check your server time?

Yes! I done Time/Date on my server and Joomla Global configuration --> Location Settings --> Server Time, Both are timezone I selected in my local time. But it still publish my article before time set start publishing.

Yes! You're right. I a using SEF.