Over time, this developed into the celebration we have today. The renovation was originally expected to be complete by the end of , but it was finished by October calling the building Britannia Point. These were a much lighter colour than the underlying concrete surface and would change the look of the Tower significantly if installed across the building. Before the merger with Merton, it was in the Municipal Borough of Mitcham. However, in America, it always falls on the second Sunday in May. When is Mother's Day and why does the date change each year? It became customary for people, especially domestic servants, to be given a holiday on Mothering Sunday and were sometimes given gifts by the house owners to give to their mothers.