Determination of the day of the week day of the week begins by starting from an ‘anchor date’: a known pair (such as January 1, 1800 as a Wednesday), determining the number of days between the known day and the day that you are trying to determine, and using arithmetic modulo 7 to find a new numerical day of the week. One standard approach is to look up (or calculate, using a known rule) the value of the first day of the week of a given century, look up (or calculate, using a method of congruence) an adjustment for the month, calculate the number of leap years
Today Is Your Day the Canadian Hot 100. On the week ending July 2, 2011, "Today Is Your Day" also entered on the US "Billboard" Hot 100, at number 66 with 46,000 digital downloads (its sole week on the chart). This marked Twain's first entry on the "Billboard" Hot 100 chart since "Party for Two" (2004) spent its last week on the chart in February 2005. On the same week, "Today Is Your Day" entered at number 40 on the US Hot Country Songs chart, ranking Twain's fourth-highest debut. Two weeks later, on the week ending July 16, 2011, the track reached its peak