Amazon Prime Day is just hours away. The 36-hour sale starting Monday, July 16 will feature more than one million deals, and its global reach has been extended to four more countries this year: Australia, Singapore, Netherlands and Luxembourg join the US, UK, Spain, Mexico, Japan, India, Italy, Germany, France, China, Canada, Belgium and Austria.

Here’s everything you need to know, including what’s already on sale.

What: Amazon’s smorgasbord of deals — pretty much “Black Friday in July.” More than a million products will be discounted, but not all at the same time, and not all for the duration of the event. Some will be available only during certain hours, for example, while others may sell out.

When: Prime Day starts at 3 p.m. ET (noon PT) on Monday, July 16. It runs through 11:59 p.m. ET on Tuesday night, July 17. (Note it will start at noon UK and noon AEST on July 16 in the UK and Australia, and run for 36 hours in both countries. Offers will differ from country to country.)

Who can participate: Technically, you must be an Amazon Prime subscriber to take advantage of Prime Day deals… but some vendors may offer discounts that are available to all shoppers.