You can click the "Calendar" text on the blue horizontal bar toward the top of the screen to get to Disney World's Calendar. Once there, simply select the park and month you desire, and you'll find the park hours. You can also simply click HERE to go to the calendar page directly.
To find out which parks have Extra Magic Hours each day, simply click on the text "Extra Magic Hours" (EMH) within the calendar. You can also click HERE to get to the EMH page directly.
If you simply want to know the EMH hours for February, they are:
Morning Extra Magic Hours
Magic Kingdom® Park – February 5, 12, 19, 26
Epcot® – February 3, 10, 17, 24, 28
Disney's Hollywood Studios™ – February 7, 14, 21
Disney's Animal Kingdom® Theme Park – February 2, 9, 16, 23
Evening Extra Magic Hours
Magic Kingdom® Park – February 1, 8, 15, 22
Epcot® – February 6, 13, 20, 27
Disney's Hollywood Studios™ – February 5, 12, 16, 23
Disney's Animal Kingdom® Theme Park – February 4, 11, 18, 25
Hope that helps!