EST vs BST Time Difference
See the current EST and BST offset, understand DST effects, and find the best hours to schedule meetings across both time zones.
How to Find the Time Difference Between EST and BST
Open the EST vs BST converter page: Go to https://www.xconvert.com/time-converter/est-vs-bst to load a visual comparison grid with EST and BST already shown as separate rows across a 24-hour timeline. This page is useful when you are scheduling a sales call between the U.S. East Coast and the UK, planning a transatlantic flight connection, or coordinating a handoff between a New York support team and a London operations team.
Add comparison cities if your schedule involves more than two locations: Click “+ Add City” and search for places such as New York, London, or Toronto to compare specific business hubs that commonly work across these time zones in finance, media, legal services, and technology. Adding real cities helps when your meeting participants are not all using the same label, because New York follows Eastern Time and London follows UK time rules, including daylight saving changes that affect the actual gap during the year.
Drag across the grid to select a meeting window: Click “Select” to enter selection mode, then drag across the EST row from 9:00 AM to 11:00 AM EST to highlight that block in purple; this corresponds to 2:00 PM to 4:00 PM BST when BST is active, which is often a practical overlap for U.S.-UK business calls. You can drag the center of the purple block to move the window later, or use the left and right handles to resize it if you need to test whether a London afternoon review still fits before the New York lunch period ends.
Export the selected time range for your team: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link depending on how you want to distribute the time. For example, a remote product team can send the ICS file so everyone sees the event in local time automatically, while a recruiter arranging interviews between Boston and London might use Copy to clipboard or Gmail to send a confirmed slot quickly.
EST vs BST Offset Explained
EST is usually 5 hours behind BST when both labels are used literally. Eastern Standard Time is UTC-5, while British Summer Time is UTC+1, so the exact offset is 6 hours, meaning BST is 6 hours ahead of EST. When it is 9:00 AM EST, it is 3:00 PM BST.
The main source of confusion is that many people use “EST” to mean the broader U.S. Eastern time zone year-round, even though the eastern U.S. switches between EST (UTC-5) in winter and EDT (UTC-4) in summer. The UK also switches between GMT (UTC+0) in winter and BST (UTC+1) in summer. If you are comparing actual New York time with actual London time, the difference is often 5 hours, but if you are comparing EST specifically to BST specifically, the difference is 6 hours.
British Summer Time begins in the UK on the last Sunday in March and ends on the last Sunday in October. In 2026, BST starts on 29 March 2026 and ends on 25 October 2026. During this period, London and the rest of the UK move one hour ahead of GMT, which extends evening daylight and affects call scheduling with North America, Europe, and the Middle East.
Eastern Standard Time applies during the U.S. winter period and returns after daylight saving time ends on the first Sunday in November. In 2026, the U.S. switches to daylight saving time on 8 March 2026 and returns to standard time on 1 November 2026. That means if you are coordinating with U.S. companies in banking, consulting, SaaS, or media, you need to check whether they are on EST or EDT, because a meeting that was a comfortable 2:00 PM London / 9:00 AM New York slot may shift by an hour during transition weeks.
These transition weeks matter because the U.S. and UK do not change clocks on the same dates. Between the U.S. DST change in March and the UK DST change later in March, and again between the UK DST end in October and the U.S. DST end in November, the usual working-hour overlap can temporarily shift. For global teams handling market opens, customer support coverage, or cross-border legal deadlines, this one-hour mismatch can create missed calls if calendar invites were created without checking the specific date.
A practical way to think about the comparison is this: if you are using strict EST vs BST, 8:00 AM EST = 2:00 PM BST, 12:00 PM EST = 6:00 PM BST, and 5:00 PM EST = 11:00 PM BST. That makes early U.S. morning to midday the best overlap for same-day collaboration, while late U.S. afternoon pushes well into the UK night and is usually unsuitable for recurring meetings.
Frequently Asked Questions
What is the exact time difference between EST and BST?
The exact difference between Eastern Standard Time (UTC-5) and British Summer Time (UTC+1) is 6 hours, with BST ahead of EST. That means when it is 10:00 AM in EST, it is 4:00 PM in BST, which is often still within UK office hours but already well into the afternoon.
Is BST always 5 hours ahead of EST?
No, BST is not 5 hours ahead of EST; it is 6 hours ahead of EST. The “5-hour difference” usually refers to New York during daylight saving transitions with London under different seasonal rules, or to people comparing broader Eastern Time with UK local time rather than the specific labels EST and BST.
Why do people get confused between EST and UK time?
Many users say “EST” when they really mean the U.S. Eastern time zone in general, even though that region uses EST in winter and EDT in summer. The UK creates similar confusion because it uses GMT in winter and BST in summer, so a meeting between New York and London may be 5 hours apart on many dates, but EST vs BST as named zones is specifically 6 hours apart.
When is the best meeting time between EST and BST?
A practical overlap is usually 8:00 AM to 12:00 PM EST, which converts to 2:00 PM to 6:00 PM BST. This range works well for industries such as finance, advertising, software, and legal services because it keeps meetings inside the normal business day on both sides of the Atlantic without forcing London participants into late evening calls.
How do daylight saving changes affect EST and BST meetings?
Daylight saving changes matter because the U.S. and UK do not switch on the same dates, creating short periods each spring and autumn when the usual working relationship shifts by an hour. For example, a recurring transatlantic meeting set by habit rather than by timezone-aware scheduling can land too early for a Boston team or too late for a London team during those transition windows.
Is London on BST all year?
No, London is on BST only during the daylight saving period, roughly from the last Sunday in March to the last Sunday in October. Outside that period, London uses Greenwich Mean Time (GMT, UTC+0), which changes the comparison with U.S. Eastern time and is important for airlines, trading desks, and multinational teams that schedule by local office hours.
How can I quickly check EST to BST for a business call?
Use the visual grid on the converter page and drag a purple selection over the EST hours you are considering, such as 9:00 AM to 10:30 AM EST, to see the matching BST time instantly. This is especially useful for arranging interviews, client demos, or support escalations, because you can test several windows visually and then export the confirmed slot to Google Calendar, Gmail, or an ICS file without manually calculating the offset.