BST to EST Converter

British Summer Time → Eastern Time · BST is 5 hours ahead of EDT in summer

BST
—
EST
—

BST and EST are the same time

BST to EST Conversion Table

BSTEST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM BST)

Major BST Cities
  • London
  • Manchester
  • Edinburgh
  • Birmingham
  • Dublin
  • Cardiff
Major EST Cities
  • New York, NY
  • Miami, FL
  • Boston, MA
  • Atlanta, GA
  • Washington D.C.
  • Philadelphia, PA
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BST vs EST — London to New York in Summer

BST (British Summer Time) is UTC+1, active from the last Sunday of March to the last Sunday of October. Outside this window, the UK uses GMT (UTC+0).

EST (Eastern Standard Time) is UTC-5, used by New York in winter. In summer the US East Coast uses EDT (UTC-4).

The London–New York corridor is the world's most traded financial route. In summer, when both cities are on BST and EDT, the gap is 5 hours. The best overlap window is 2:00–6:00 PM BST / 9:00 AM–1:00 PM EDT.

Frequently Asked Questions

How many hours is BST ahead of EST?

BST (British Summer Time, UTC+1) is 5 hours ahead of EST (Eastern Standard Time, UTC-5). However, this comparison is slightly unusual: BST is the UK's summer time (active March–October), while EST is the US East Coast's winter time (active November–March). In summer when the US uses EDT (UTC-4), BST is only 5 hours ahead. When both zones are on summer time simultaneously (briefly in spring/autumn), the gap can be 5 or 4 hours.

What is 9 AM BST in EST/EDT?

9:00 AM BST (London summer) is 4:00 AM EST or 4:00 AM EDT (New York). The UK and US typically observe summer time simultaneously from mid-March to late October, during which BST (UTC+1) is 5 hours ahead of EDT (UTC-4). Outside US DST, BST is 6 hours ahead of EST (UTC-5).

What is the best time to call New York from London in summer?

The best overlap window between London (BST) and New York (EDT) in summer is 2:00–6:00 PM BST, which equals 9:00 AM–1:00 PM EDT. This gives New York a solid morning window while London is in mid-to-late afternoon.

What is the difference between GMT and BST?

GMT (Greenwich Mean Time) is UTC+0 and is used in the UK from late October to late March. BST (British Summer Time) is UTC+1 and is used from the last Sunday of March to the last Sunday of October. BST is the UK's Daylight Saving Time.