BST to EST Time Converter
About this conversion
BST is British Summer Time (UTC+1). Because BST only runs from March to October, when the US east coast is mostly on EDT, a real UK-US conversion in summer uses BST and EDT, which are five hours apart. This page compares fixed BST with fixed EST.
When the time difference changes
Both sides keep a fixed offset, so the gap does not change in the next two years.
Best time to call or meet
15:00 to 17:00 BST is 09:00 to 11:00 EST, 2 hours of shared 09:00 to 17:00 time.
Common times
- 06:00 BST = 00:00 EST
- 09:00 BST = 03:00 EST
- 12:00 BST = 06:00 EST
- 15:00 BST = 09:00 EST
- 17:00 BST = 11:00 EST
- 20:00 BST = 14:00 EST
BST to EST hour-by-hour table
Highlighted rows fall within 09:00 to 17:00 on both sides.
| BST | EST |
|---|---|
| 00:00 | 18:00 (previous day) |
| 01:00 | 19:00 (previous day) |
| 02:00 | 20:00 (previous day) |
| 03:00 | 21:00 (previous day) |
| 04:00 | 22:00 (previous day) |
| 05:00 | 23:00 (previous day) |
| 06:00 | 00:00 |
| 07:00 | 01:00 |
| 08:00 | 02:00 |
| 09:00 | 03:00 |
| 10:00 | 04:00 |
| 11:00 | 05:00 |
| 12:00 | 06:00 |
| 13:00 | 07:00 |
| 14:00 | 08:00 |
| 15:00 | 09:00 |
| 16:00 | 10:00 |
| 17:00 | 11:00 |
| 18:00 | 12:00 |
| 19:00 | 13:00 |
| 20:00 | 14:00 |
| 21:00 | 15:00 |
| 22:00 | 16:00 |
| 23:00 | 17:00 |
Related conversions
Clock change guides
- What Is Daylight Saving Time (DST)? A Plain-English GuideWhat daylight saving time is, how it works in the UK, Europe and the US, why it exists, its history, who uses it and the argument over scrapping it.
- Why Do the Clocks Go Back in October? The Real ReasonThe clocks go back in autumn to return the UK to GMT, so winter mornings are lighter. The history, the rule, what time it happens and what changes for you.
- When Do the Clocks Go Forward Again After Going Back?When the UK clocks go forward again after the autumn change, how long the UK stays on GMT, when evenings get lighter and how to remember to reset your clocks.
Frequently asked questions
What is 15:00 BST in EST?
15:00 BST is 09:00 EST at the moment. The answer can change by an hour when either side changes its clocks.
What are the shared working hours for BST and EST?
15:00 to 17:00 BST is 09:00 to 11:00 EST, 2 hours of shared 09:00 to 17:00 time.
When does the BST to EST time difference change?
It does not change in the next two years.