Pacific Time Zone early November) is being observed. In Mexico, the corresponding time zone is known as the "Zona Noroeste" (Northwest Zone) and observes the same daylight saving schedule as the U.S. and Canada. The largest city in the Pacific Time Zone is Los Angeles; the city's metropolitan area is the largest in the zone. The zone is two hours ahead of the Hawaii–Aleutian Time Zone, one hour ahead of the Alaska Time Zone, one hour behind the Mountain Time Zone, two hours behind the Central Time Zone, three hours behind the Eastern Time Zone, and four hours behind the Atlantic Time Zone.
Internet Standard Internet Standards is maintained in the Official Internet Protocol Standards. Previously, STD 1 used to maintain a snapshot of the list. Becoming a standard is a two-step process within the Internet Standards Process: "Proposed Standard" and "Internet Standard". These are called "maturity levels" and the process is called the "Standards Track". If an RFC is part of a proposal that is on the Standards Track, then at the first stage, the standard is proposed and subsequently organizations decide whether to implement this Proposed Standard. After the criteria in RFC 6410 is met (two separate implementations, widespread use, no errata etc.),