BST to GST Time Converter
About this conversion
GST here means Gulf Standard Time (UTC+4), used in the UAE and Oman. Compared with BST (UTC+1), it is three hours ahead.
GST is also used as an abbreviation for Guam Standard Time and the Gulf region, so confirm the country when you write it. In UK winter the gap grows to four hours.
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
09:00 to 14:00 BST is 12:00 to 17:00 GST, 5 hours of shared 09:00 to 17:00 time.
Common times
- 06:00 BST = 09:00 GST
- 09:00 BST = 12:00 GST
- 12:00 BST = 15:00 GST
- 15:00 BST = 18:00 GST
- 17:00 BST = 20:00 GST
- 20:00 BST = 23:00 GST
BST to GST hour-by-hour table
Highlighted rows fall within 09:00 to 17:00 on both sides.
| BST | GST |
|---|---|
| 00:00 | 03:00 |
| 01:00 | 04:00 |
| 02:00 | 05:00 |
| 03:00 | 06:00 |
| 04:00 | 07:00 |
| 05:00 | 08:00 |
| 06:00 | 09:00 |
| 07:00 | 10:00 |
| 08:00 | 11:00 |
| 09:00 | 12:00 |
| 10:00 | 13:00 |
| 11:00 | 14:00 |
| 12:00 | 15:00 |
| 13:00 | 16:00 |
| 14:00 | 17:00 |
| 15:00 | 18:00 |
| 16:00 | 19:00 |
| 17:00 | 20:00 |
| 18:00 | 21:00 |
| 19:00 | 22:00 |
| 20:00 | 23:00 |
| 21:00 | 00:00 (next day) |
| 22:00 | 01:00 (next day) |
| 23:00 | 02:00 (next day) |
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 GST?
15:00 BST is 18:00 GST 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 GST?
Counting 09:00 to 17:00 as the working day on both sides, there are 5 shared hours, starting at 09:00 BST.
When does the BST to GST time difference change?
It does not change in the next two years.
What is the time difference between BST and GST?
Three hours, with the Gulf ahead.