In Thailand, pink is associated with Tuesday on the Thai solar calendar. Anyone may wear pink on Tuesdays, and anyone born on a Tuesday may adopt pink as their colour.
In 2007, King Bhumibol Adulyadej was taken seriously ill and when he eventually recovered a few weeks later, he left the hospital wearing a pink shirt and pink blazer. It was later revealed that a Thai astrologer had forecast his majesty would heal and stay healthy by wearing pink. Almost over night, pink became the new colour for showing the people's love for the king.