Alaska U.S.A. and Yukon, Canada Border United States Border Inspection Point. Open 24/7. All west bound traffic must check in. NOTE; Time change at the Alaska Border. Entering Alaska, set your watch one hour earlier. Seat Belts and driving with your car lights on, in the daytime, is mandatory in Alaska. Start / Finish of Highway Travel Guide. - NOTE Alaska Highway #2, 'The Alaska Highway' becomes Yukon Highway #1, east of this point. FOR Highway travel east via Yukon Highway #1 - See Milebymile.com Road Map Highway Travel Guide Alaska / Yukon Border Whitehorse Yukon, for driving directions, highway photos.