https://www.cnbc.com/2018/06/04/apple-wwdc-keynote-how-to-watch.html

Apple is holding its big annual developer conference, WWDC, on Monday, starting at 10AM PST.

The keynote will be live-streamed through Apple's website here. For the first time in recent memory, the live stream works on Google's Chrome browser, as long as you have support for the right underlying technologies (MSE, H.264, and AAC, according to Apple). It also works on Apple's Safari -- including on any iPhone or iPad running iOS or later -- or Microsoft's Edge. You can also watch it through an Apple TV.