Time difference
London to Philadelphia Time Difference
Philadelphia is 5 hours behind London — when it's 12:00 PM in London, it's 7:00 AM in Philadelphia. (London (Europe/London, BST); Philadelphia (America/New_York, EDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Philadelphia is 5 hours behind London. The best window for a call is 2 PM–5 PM in London, which is 9 AM–12 PM in Philadelphia — a 3-hour overlap inside 9 AM–5 PM on both sides. Clocks change on October 25, 2026, which briefly shifts the gap between London and Philadelphia — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in London, it's 4:00 AM in Philadelphia.
- When it's 9:00 AM in Philadelphia, it's 2:00 PM in London.
Philadelphia is currently 5 hours behind London.
Interactive converter
12:00PM
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Best times to meet
The 9 AM – 5 PM business windows in London and Philadelphia overlap for 3 hours. 2 PM–5 PM in London is 9 AM–12 PM in Philadelphia. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| London | Philadelphia |
|---|---|
| 12 AM | 7:00 PM (prev day) |
| 1 AM | 8:00 PM (prev day) |
| 2 AM | 9:00 PM (prev day) |
| 3 AM | 10:00 PM (prev day) |
| 4 AM | 11:00 PM (prev day) |
| 5 AM | 12:00 AM |
| 6 AM | 1:00 AM |
| 7 AM | 2:00 AM |
| 8 AM | 3:00 AM |
| 9 AM | 4:00 AM |
| 10 AM | 5:00 AM |
| 11 AM | 6:00 AM |
| 12 PM | 7:00 AM |
| 1 PM | 8:00 AM |
| 2 PM | 9:00 AM |
| 3 PM | 10:00 AM |
| 4 PM | 11:00 AM |
| 5 PM | 12:00 PM |
| 6 PM | 1:00 PM |
| 7 PM | 2:00 PM |
| 8 PM | 3:00 PM |
| 9 PM | 4:00 PM |
| 10 PM | 5:00 PM |
| 11 PM | 6:00 PM |
Daylight saving
On October 25, 2026, London shifts for daylight saving. After that, Philadelphia will be 4 hours behind London (currently 5 hours behind London). The converter and the tables above always reflect the correct offset for the date you pick.
- London is currently observing daylight saving time.
- Philadelphia is currently observing daylight saving time.
Frequently asked questions
- Is Philadelphia ahead of or behind London?
- Philadelphia is 5 hours behind London.
- How many hours behind London is Philadelphia?
- Philadelphia is 5 hours behind London.
- What time is 9 AM in London in Philadelphia?
- 9:00 AM in London is 4:00 AM in Philadelphia.
- What time is noon in London in Philadelphia?
- 12:00 PM in London is 7:00 AM in Philadelphia.
- What time is 5 PM in London in Philadelphia?
- 5:00 PM in London is 12:00 PM in Philadelphia. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in London in Philadelphia?
- 3:00 PM in London is 10:00 AM in Philadelphia.
- Is London currently observing daylight saving time?
- London is currently observing daylight saving time (summer time).
- Is Philadelphia currently observing daylight saving time?
- Philadelphia is currently observing daylight saving time (summer time).
- Do London and Philadelphia observe daylight saving?
- On October 25, 2026, London shifts for daylight saving. After that, Philadelphia will be 4 hours behind London (currently 5 hours behind London). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Philadelphia from London?
- Aim for 2 PM–5 PM in London, which is 9 AM–12 PM in Philadelphia.
- When is the best time to call London from Philadelphia?
- Aim for 9 AM–12 PM in Philadelphia, which is 2 PM–5 PM in London.
- London (BST) to Philadelphia (EDT) — how do I convert quickly?
- Subtract 5 hours from London local time to get Philadelphia local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- London to New York
- London to Tokyo
- Dubai to London
- London to Singapore
- London to Los Angeles
- London to Sydney
- London to Paris
- London to Mumbai
- Hong Kong to London
- London to San Francisco