Cyber Monday takes place this year on the Monday after Thanksgiving, on November 30.
In recent years, however, the term "Cyber Monday" is slowly being phased out in favor of the longer and more intensive "Cyber Week." Previously, the main differentiation between Black Friday and Cyber Monday was that Black Friday focused on in-store sales and Cyber Monday on online sales.
However, as shopping habits increasingly favor the internet, Cyber Monday seems to be edging out Black Friday as the premier holiday shopping event of the season.
Typically, it begins at 12 a.m. on Monday. However, it can also start earlier. For example, Amazon's sale began at 8 p.m. the Sunday before Cyber Monday.
Cyber Monday sales could start as early as on Black Friday as part of a larger Cyber Week promotion. Though Cyber Monday sales once only took place on Monday, we've been seeing them extend to longer and longer durations.
Cyber Monday sales could also last throughout the end of the week (ending December 4 or 5).