Determination of the day of the week ISO 8601. The day designated with 7 may also be counted as "0", by applying the arithmetic modulo 7, which calculates the remainder of a number after division by 7. Thus, the number 7 is treated as 0, 8 as 1, 9 as 2, 18 as 4 and so on. If Sunday is counted as day 1, then 7 days later (i.e. day 8) is also a Sunday, and day 18 is the same as day 4, which is a Wednesday since this falls three days after Sunday. The basic approach of nearly all of the methods to calculate the
The Week in Politics The Week in Politics The Week in Politics is an Irish news and current affairs programme broadcast on RTÉ One and RTÉ News Now. It is presented by Áine Lawlor, occasionally by David McCullagh or Bryan Dobson. In its original format in 1996 it was hosted by Caroline Erskine and Seán Duignan. The programme reflects on the political week, with interviews and discussions. The majority of guests are politicians who are Teachtaí Dála or Irish Senators. The programme is broadcast live at noon on Sunday and is repeated throughout the day on RTÉ News Now and its traditional late night