Boxing Day is the bank holiday that takes place on Decemaer 26. In South Africa, Boxing Day was renamed Day of Goodwill in 1994.
Due to the Roman Catholic Church's liturgical calendar, the day is known as St. Stephen's Day to Catholics, and in Italy,Finland and Moselle in France. The Boxing Day is celebrated as the second christmas.

origin
The exact etymology is unclear but there are several competing theories, none of which is definitive. The European tradition, which has long included giving money and other gifts to those who were needy and in service positions, has been dated to the Middle Ages, but the exact origin is unknown.
Also, it may come from a custom in the late Roman/early Christian era, wherein metal boxes placed outside churches were used to collect special offerings tied to the Feast of Saint Stephen, which in the western churches falls on the same day as Boxing Day. In Britain, it was a custom to collect boxes of money or presents on the first weeday after Christmas as thanks for good service throughout the year.
This is metioned in Samuel Pepys' diary entry for 19 December 1663. This custom is linked to and older English tradition: since they would have to wait on their masters on Christmas Day, the servants of the wealthy were allowed the next day to visit their families. The employers would give each servant a box to take home containhng gifts and bonuses, and maybe sometimes leftover food.-VANGUARD
Boxing day is also a day when people wakeup and realised that the Christmas is past hoping for the next one in a year time.