Monday, December 2 is Cyber Monday 2018.
In retail and online shopping the Monday immediately following Thanksgiving (or the Monday immediately following Black Friday) in the United States is referred to as Cyber Monday. This is a busy day for online retailers as it was initially perceived as the day when employees would return to work and shop online for the items they did not purchase on the preceding Black Friday. The term Cyber Monday was first coined by Shop.org and first used in 2005.
See also Black Friday.