Why cant i work these days are my days as a programmer over?
Have a deadline but dont know why I want to miss it.
Have any one else bieng here?

Burnout. It's a tough thing to go through. It's a signal that you are off balance, stagnant. At the risk of sounding like a fortune cookie, use it to guide you into the change that you need. Maybe you need to work less and a missed deadline is the price to pay. Maybe it's more you time. Maybe you need a gym membership to cope with the mental fatigue. Maybe you need a new hobby that will act as a needed release. Maybe you need to learn something new to get you excited about your chosen field of employment again. Something needs an adjustment, you just have to figure out what it is.

You're just fed up with the project. If there's time - get some rest, go places, vent out. A couple of days later come back and finish your project.
If time is short - get your shit together and just finish the damn thing. Afterwards - take a nice vacation as a reward.

As for burnout... I really really doubt it. Judging from the way you made a question I say it's not burnout. Just fed up.

@duckWit trying for past few days nothing is working, got buy a bike may be it will pump
enough adrenaline to go through these days.

@nkhan it's a process. One day at a time.