Time in BST and HMT
The time difference between British Summer Time (BST) and Heard and McDonald Islands Time (HMT) is 4 hours. Heard and McDonald Islands Time is 4 hours ahead of British Summer Time.
This means 9am BST is 1pm HMT and 5pm BST is 9pm HMT.
British Summer Time
- The current local time in BST is 2:07 pm (July 3, 2026)
- BST time zone offset is UTC+01:00
Heard and McDonald Islands Time
- The current local time in HMT is 6:07 pm (July 3, 2026)
- HMT time zone offset is UTC+05:00
How to convert British Summer Time to Heard and McDonald Islands Time?
Add 4 hours to British Summer Time to get Heard and McDonald Islands Time.
Time in BST
00:00
Time in HMT
00:00
Use the slider above to convert British Summer Time to Heard and McDonald Islands Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| BST | HMT |
|---|---|
| 12am | 4am |
| 1am | 5am |
| 2am | 6am |
| 3am | 7am |
| 4am | 8am |
| 5am | 9am |
| 6am | 10am |
| 7am | 11am |
| 8am | 12pm |
| 9am | 1pm |
| 10am | 2pm |
| 11am | 3pm |
| 12pm | 4pm |
| 1pm | 5pm |
| 2pm | 6pm |
| 3pm | 7pm |
| 4pm | 8pm |
| 5pm | 9pm |
| 6pm | 10pm |
| 7pm | 11pm |
| 8pm | 12am |
| 9pm | 1am |
| 10pm | 2am |
| 11pm | 3am |