Maundy Thursday Maundy Thursday Maundy Thursday (also known as Holy Thursday, Covenant Thursday, Great and Holy Thursday, Sheer Thursday, and Thursday of Mysteries, among other names) is the Christian holy day falling on the Thursday before Easter. It commemorates the foot washing (Maundy) and Last Supper of Jesus Christ with the Apostles, as described in the canonical gospels. It is the fifth day of Holy Week, preceded by Holy Wednesday and followed by Good Friday. "Maun-" is from Old Norse, present of munu meaning shall or will; akin to Old English gemynd meaning mind. The date is always between March 19 and
360-day calendar used a 360 day calendar. Romans initially used a calendar which had 360 days, with varying length of months. The Rig Veda describes a calendar with twelve months and 360 days. In the Mayan Long Count Calendar, the equivalent of the year, the tun, was 360 days. A duration is calculated as an integral number of days between start date A and end date B. The difference in years, months and days are usually calculated separately: There are several methods commonly available which differ in the way that they handle the cases where the months are not 30 days long,