first of all excuse my English

let me tell u about my concept.
i am trying to record video using webcam, starting at specific time ( like 11:00am and stopping at 12:00pm ) and save it automatically in the specific folder on the desktop.
i have pi-2 with Raspbian installed and a webcam.
plz help me ,i tried to follow many tutorials on youtube.com and other sites but failed.
thanks in advance
