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UK to ET time converter
US Eastern is 5 hours behind London for 337 days of 2026, and 4 hours behind for the other 28 days, because daylight saving changes the gap.
UK to ET conversion table
Local time in London and the matching time in US Eastern on two reference dates, one in winter and one in summer for the northern hemisphere.
| London (UK) | US Eastern on 15 January | US Eastern on 15 July |
|---|---|---|
| 08:00 | 03:00 | 03:00 |
| 09:00 | 04:00 | 04:00 |
| 10:00 | 05:00 | 05:00 |
| 12:00 | 07:00 | 07:00 |
| 15:00 | 10:00 | 10:00 |
| 17:00 | 12:00 | 12:00 |
| 18:00 | 13:00 | 13:00 |
| 21:00 | 16:00 | 16:00 |
Best meeting times between London and US Eastern
- January: Inside both working days (09:00-17:00): 14:00-17:00 UK = 09:00-12:00 ET.
- July: Inside both working days (09:00-17:00): 14:00-17:00 UK = 09:00-12:00 ET.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between UK and ET
- London moves its clocks forward on 29 March and back on 25 October in 2026.
- US Eastern moves its clocks forward on 8 March and back on 1 November in 2026.
- The gap is 5 hours for 337 days and 4 hours for 28 days of 2026.
About the two zones
London. The UK is on GMT (UTC+0) in winter and British Summer Time (UTC+1) from the last Sunday of March to the last Sunday of October.
US Eastern. US Eastern Time is UTC-5 in winter (EST) and UTC-4 in summer (EDT), and is the default business time for much of the US East Coast.
Frequently asked questions
What time is 9 AM UK in ET?
On 15 January, 09:00 in London is 04:00 in US Eastern. On 15 July it is 04:00.
What is the time difference between London and US Eastern?
US Eastern is 5 hours behind London for 337 days of 2026, and 4 hours behind for the other 28 days, because daylight saving changes the gap.
Does the time difference between UK and ET change during the year?
Yes. Both zones change their clocks, on different dates, so the gap moves between 5 and 4 hours. Always convert with the actual date.
When is the best time for a meeting between London and US Eastern?
Inside both working days (09:00-17:00): 14:00-17:00 UK = 09:00-12:00 ET. In July: Inside both working days (09:00-17:00): 14:00-17:00 UK = 09:00-12:00 ET.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.