https://www.theverge.com/2017/10/27/16556722/apple-iphone-x-delivery-dates-delays

iPhone X availability is constrained but not as bad as it could have been after months of rumors that stock would be severely limited. Apple stores in the US, UK, China, Japan and elsewhere show five to six weeks for delivery, while the Apple Store in Hong Kong simply says “no supply available.” If you want it faster, the only other option is to join a line at an Apple retail store or buy off eBay for a markup. Otherwise, the only people getting an iPhone X on November 3rd were shopping online at 3AM in their underpants.

Each year there’s typically a configuration or color option more constrained than the base models. Last year, delays hit the iPhone 7 Plus in Jet Black (from six to eight weeks). At this point in the day, iPhone X shipments appear to be limited in the same way Apple’s AirPods were. AirPods only started showing up regularly in stores earlier this year, after months of them being on sale with six week shipping delays.