[Fixed]-Get object with specific hour in django

The following will give you all the objects having hour value as 12.

o = Order.objects.filter(dateTime__hour=12)

which can be used in place of

o = Order.objects.get(dateTime__hour=12)` 

to get that one object, in case you have unique hour values for objects.

But if already know that you have unique value of hour then you should use
the later.