Puerto Vallarta, Mexico - In most regions of Mexico, clocks will be turned back one hour at 2 am on Sunday, October 30, 2011 as daylight saving time (DST) ends.

Due to the fact that Mexico did not go along with the longer period of daylight savings time that was established in the US in 2007, the shift from daylight savings time to standard time in Mexico will take place this Sunday, October 30th at 2 am, while the U.S. will not set their clocks back until 2 am on Sunday, November 6th, 2011.

This means, just for next week, Puerto Vallarta will be an extra hour behind the U.S., something visitors may find useful to know - especially those arriving by cruise ship or airplane.

At Puerto Vallarta's Gustavo Diaz Ordaz International Airport, flight itineraries will be rescheduled to avoid delays and confusion for passengers, and all of the information screens in the national and international corridors, terminals, waiting rooms and shopping areas will be adjusted, detailing arrivals, departures and flight status.

Airport directors will coordinate with service companies that operate at the airfield, along with Aerotrón, to change flight schedules and inform passengers about flight rescheduling.

According to current airline safety guidelines, and in order to comply with the review of documents and baggage check, travelers should arrive at the airport three hours in advance for international flights, and two hours in advance for national flights.