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.
Heathrow Airport trains. Trains offer the quickest link between Heathrow and central London. There are two services to choose from. 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. Heathrow Connect. Stopping service to London Paddington and Heathrow Airport departing every 30 minutes and calling at local stations in west London. Journey time varies between 31 and 49 minutes.