London is 5 hours ahead of Pittsburgh during most of the year. Pittsburgh uses Eastern Time (ET, UTC-5/-4) while London uses Greenwich Mean Time/British Summer Time (GMT/BST, UTC+0/+1). When it's 12:00 PM in Pittsburgh, it's 5:00 PM in London.
The difference may temporarily change to 4 or 6 hours during the brief periods when the US and UK change clocks on different dates.
Best calling time: 8:00 AM - 12:00 PM Pittsburgh time. This corresponds to 1:00 PM - 5:00 PM in London, covering afternoon business hours.
Pittsburgh has historical British connections through its steel industry and banking ties. Many UK companies have operations in Pittsburgh's tech and healthcare sectors. Direct flights are limited, with connections typically through New York or Philadelphia.