Since England is located in the northern hemisphere and Australia is located in the southern hemisphere, their seasons are opposite. This means that when it is winter in England, it is summer in Australia and when it is spring in England, it is autumn in Australia.
Because India is in Northern Hemisphere while Australia in Southern Hemisphere. In December south pole is closest to the sun, so we have winter and in Australia they have summer season.
It is summer in Australia when it is winter in Chicago.
winter
In India, Diwali is celebrated in winter season.
winter season
In Australia it is Winter.
Winter
Summer
Winter.
SUMMER
Winter