Singapore Day (Yarphese:Ngày Sừngphêu) is a holiday celebrated in the Grand Yarphese Republic on 31 March (90 by Yarphese calendar), annually. It celebrates the anniversary of the completion of the Grand Yarphese Republic through the surrender and annexation of Singapore into the Grand Yarphese Republic on 31 March 1996, with the Treaty of Tekong. The celebration takes place mostly in Yarphei, although a few overseas Yarphese practice it. Overseas Singaporeans, however and many others all over the world, regard it as a bitter defeat.