https://www.cnbc.com/2018/06/21/a-tech-goof-might-have-just-leaked-the-date-for-amazon-prime-day.html

This year's Amazon Prime Day is reportedly scheduled to start around midday July 16 and continue through the following day.

The unannounced date was accidentally published on a banner of Amazon's U.K. website this week, according to TechRadar.