Time Difference: London to Philadelphia
Click a time to convert
London vs Philadelphia timezone guide
London (UK) uses the Europe/London timezone at UTC+0, while Philadelphia (US) uses America/New_York at UTC-5. This means Philadelphia is 5 hours behind London (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between London and Philadelphia
Standard 9-to-5 working hours overlap by 3 hours per day. The shared window is 2pm–5pm in London, which is 9am–12pm in Philadelphia. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| London | Philadelphia | Status |
|---|---|---|
| 6am | 1am | London early, Philadelphia asleep |
| 7am | 2am | London early, Philadelphia asleep |
| 8am | 3am | London early, Philadelphia asleep |
| 9am | 4am | London working hours, Philadelphia asleep |
| 10am | 5am | London working hours, Philadelphia asleep |
| 11am | 6am | One side outside 9-to-5 but still awake |
| 12pm | 7am | One side outside 9-to-5 but still awake |
| 1pm | 8am | One side outside 9-to-5 but still awake |
| 2pm | 9am | Both at work — ideal meeting time |
| 3pm | 10am | Both at work — ideal meeting time |
| 4pm | 11am | Both at work — ideal meeting time |
| 5pm | 12pm | One side outside 9-to-5 but still awake |
| 6pm | 1pm | One side outside 9-to-5 but still awake |
| 7pm | 2pm | One side outside 9-to-5 but still awake |
| 8pm | 3pm | One side outside 9-to-5 but still awake |
| 9pm | 4pm | One side outside 9-to-5 but still awake |
| 10pm | 5pm | London late evening, Philadelphia evening |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between London and Philadelphia
Both cities observe daylight saving time, but on different schedules. This creates short windows each year where the usual difference of 5 hours ahead temporarily shifts.
- Mar 8 → Mar 29Difference temporarily 4 hours ahead.
- Oct 25 → Nov 1Difference temporarily 4 hours ahead.
London transitions on March 29, 2026 and October 25, 2026. Philadelphia transitions on March 8, 2026 and November 1, 2026.
Distance between London and Philadelphia
London and Philadelphia are 5,700 km apart along the great-circle route. A direct flight takes roughly ~7h 42m, depending on aircraft type, winds, and routing.