1. elapsed time-the time that elapses while some event is occurring. period, period of time, time period-an amount of time; a time period of 30 years; hastened the period of time of his recovery; Picasso's blue period.
With a journey time of 15 minutes between the airport and London Paddington, and departures every 15 minutes, Heathrow Express offers the fastest journey time. 1  Heathrow Express train service between London and Heathrow Airport.  Visit Heathrow Express online:www.heathrowexpress.com.
Your essential guide to travelling between Heathrow Airport and Central London by train, tube, coach, bus, taxi or airport hotel transfer. Located 32km (20 miles) to the west of Central London, London Heathrow Airport (LHR) is one of the busiest and most advanced airports in the world.To see LHR's exact location, visit the London Airports Map.here are various trains to London from Heathrow Airport. The Heathrow Express is the fastest way to travel into Central London. Trains from Heathrow leave every 15 minutes and the journey to London Paddington takes about 15-20 minutes. Trains to London leave Heathrow Airport from approximately 5am until 11.55pm.