It is the winter solstice. T<span>he solstice that marks the onset of winter, at the time of the shortest day, about December 22 in the northern hemisphere and June 21 in the southern hemisphere. I know this mainly because I had the same question. Good luck :)</span>
India and Pakistan used to be one country up until 1947 - when the Partition of India happened.
Ever since then their relationship has been very problematic - Kashmir is disputed between the two nations, and their relationship can be described as competition (for example they both have nuclear arms and had a kind of unofficial competition over who has more ).