Determination of the day of the week possible to do all the calculations in one's head with a little practice). None of the methods given here perform range checks, so unreasonable dates will produce erroneous results. Every seventh day in a month has the same name as the previous: "Corresponding months" are those months within the calendar year that start on the same day of the week. For example, September and December correspond, because September 1 falls on the same day as December 1. Months can only correspond if the number of days between their first days is divisible by 7, or in other words, if their
Cyber Monday in Canada, Canadian retailers needed to mimic sales offerings in order to keep Canadian dollars from being spent in the US. By 2011, around 80% of online retailers in Canada were participating in Cyber Monday. Chile's first Cyber Monday took place on November 28, 2011. The companies participating in the event are participants in the Santiago Chamber of Commerce's Electronic Commerce Committee. In 2015 the Chilean Cyber Monday had 85 stores participating, 390.000 transactions and US$83 million in sales. 36% of that was mobile. In 2016 Cyber Monday will be held on November 7. 140 companies are registered as official