Holy Week lamp or candle usually situated next to the tabernacle denoting the Presence of Christ is put out, and the remaining Eucharistic Hosts consecrated on Holy Thursday are kept elsewhere, usually the sacristy, with a lamp or candle burning before it, so that, in cases of the danger of death, they may be given as "viaticum". The name of the Easter Vigil, even if the vigil is held on what on the civil calendar is still Saturday, indicates that liturgically it is already Easter, no longer part of Holy Week, but still part of the Easter Triduum. In the Anglican, Catholic,
Armelin's calendar mind of modest ability will learn in a few minutes the weekday with which each month invariably begins, and will be able to compute quickly the day of the week upon which any day of any month falls. Each stated holiday falls upon its invariable day of the week. Thanksgiving Day falls always on November 30. A major disadvantage is for sabbatarians, who are obliged to worship every seventh day. Their holy day will occur on a different weekday every year. Armelin's project received the first premium of the French Astronomical Society. The World Calendar, roughly identical, has been promoted