TimeToZone

BST to US Time Converter

EST is 5 hours behind GMT. 9:00 AM GMT = 4:00 AM EST.

⇄ Swap
BSTfrom
British Summer Time
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US
United States
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EST is 5 hours behind GMT at the moment. To convert BST to US Time, subtract 5 hours from the BST time: 9:00 AM GMT = 4:00 AM EST.

BST (British Time) is used in United Kingdom from late March to late October. US Time (US time) is used in United States.

BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.

BST to US Time time conversion table

BST to US Time on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

BSTUS TimeDay
12:00 AM GMT7:00 PM ESTprevious day
1:00 AM GMT8:00 PM ESTprevious day
2:00 AM GMT9:00 PM ESTprevious day
3:00 AM GMT10:00 PM ESTprevious day
4:00 AM GMT11:00 PM ESTprevious day
5:00 AM GMT12:00 AM ESTnight
6:00 AM GMT1:00 AM ESTnight
7:00 AM GMT2:00 AM ESTnight
8:00 AM GMT3:00 AM ESTnight
9:00 AM GMT4:00 AM ESTnight
10:00 AM GMT5:00 AM ESTnight
11:00 AM GMT6:00 AM EST—
12:00 PM GMT7:00 AM EST—
1:00 PM GMT8:00 AM EST—
2:00 PM GMT9:00 AM ESTwork hours
3:00 PM GMT10:00 AM ESTwork hours
4:00 PM GMT11:00 AM ESTwork hours
5:00 PM GMT12:00 PM EST—
6:00 PM GMT1:00 PM EST—
7:00 PM GMT2:00 PM EST—
8:00 PM GMT3:00 PM EST—
9:00 PM GMT4:00 PM EST—
10:00 PM GMT5:00 PM EST—
11:00 PM GMT6:00 PM EST—
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert BST to US Time

Subtract 5 hours from the BST time to get US Time.

Example: 9:00 AM GMT = 4:00 AM EST.

Across midnight: 1:00 AM GMT = 8:00 PM EST (previous day). The date changes, so always check the day as well as the hour.

Time difference between BST and US Time

The time difference between BST and US Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:

  • 1 Jan 2026 – 7 Mar 2026: US Time is 5 hours behind of BST.
  • 8 Mar 2026 – 28 Mar 2026: US Time is 4 hours behind of BST.
  • 29 Mar 2026 – 24 Oct 2026: US Time is 5 hours behind of BST.
  • 25 Oct 2026 – 31 Oct 2026: US Time is 4 hours behind of BST.
  • 1 Nov 2026 – 31 Dec 2026: US Time is 5 hours behind of BST.

BST and US Time during daylight saving time

  • BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
  • US Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).

Best time for a meeting between BST and US Time

BST and US Time share 3 hours of the 9 AM–5 PM working day. Any time between 2:00 PM and 5:00 PM GMT lands between 9:00 AM and 12:00 PM EST, inside working hours for both.

Plan a meeting across more time zones.

BST to US Time FAQ

What is the time difference between BST and US Time?

Right now EST is 5 hours behind GMT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.

What is 9 AM BST in US Time?

9:00 AM GMT is 4:00 AM EST.

What is 12 PM (noon) BST in US Time?

12:00 PM GMT is 7:00 AM EST.

Is US Time ahead of or behind BST?

EST is 5 hours behind GMT, so it is earlier in US Time than in BST.

Does BST change for daylight saving time?

Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.

Does US Time change for daylight saving time?

Yes. US Time next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.

What is the best time for a meeting between BST and US Time?

BST and US Time share 3 hours of the 9 AM–5 PM working day. Any time between 2:00 PM and 5:00 PM GMT lands between 9:00 AM and 12:00 PM EST, inside working hours for both.

Related conversions

Convert US Time to BST

Convert BST to other time zones

Convert other time zones to US Time

Learn more

Updated 6 November 2026. Time zone data: IANA tz database.