Offset
The time difference between Greenwich Mean Time and Reykjavík is 1 hour.
Greenwich Mean Time (BST) is ahead of Reykjavík (GMT).
BST: UTC+1
GMT: UTC
Greenwich Mean Time is currently observing daylight saving time; Reykjavík is not.
When to schedule
Business-hours overlap: 10 AM–5 PM in Greenwich Mean Time (9 AM–4 PM in Reykjavík).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Greenwich Mean Time (12:00 PM Reykjavík).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United Kingdom
- Good FridayFri, Apr 3
- Early May Bank HolidayMon, May 4
- Spring Bank HolidayMon, May 25
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
Iceland
- New Year's DayThu, Jan 1
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- Easter MondayMon, Apr 6
- First Day of SummerThu, Apr 23
- May DayFri, May 1
- Ascension DayThu, May 14
- PentecostSun, May 24
- Whit MondayMon, May 25
- Icelandic National DayWed, Jun 17
- Commerce DayMon, Aug 3
- Christmas EveThu, Dec 24
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
- New Year's EveThu, Dec 31
About these zones
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
Reykjavík uses Greenwich Mean Time. To call Iceland, dial +354.
Reykjavík is approximately 1,150 miles northwest of Greenwich Mean Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| GMT | Reykjavík | Day |
|---|---|---|
| 12:00 am | 11:00 pm | -1 day |
| 1:00 am | 12:00 am | Same day |
| 2:00 am | 1:00 am | Same day |
| 3:00 am | 2:00 am | Same day |
| 4:00 am | 3:00 am | Same day |
| 5:00 am | 4:00 am | Same day |
| 6:00 am | 5:00 am | Same day |
| 7:00 am | 6:00 am | Same day |
| 8:00 am | 7:00 am | Same day |
| 9:00 am | 8:00 am | Same day |
| 10:00 am | 9:00 am | Same day |
| 11:00 am | 10:00 am | Same day |
| 12:00 pm | 11:00 am | Same day |
| 1:00 pm | 12:00 pm | Same day |
| 2:00 pm | 1:00 pm | Same day |
| 3:00 pm | 2:00 pm | Same day |
| 4:00 pm | 3:00 pm | Same day |
| 5:00 pm | 4:00 pm | Same day |
| 6:00 pm | 5:00 pm | Same day |
| 7:00 pm | 6:00 pm | Same day |
| 8:00 pm | 7:00 pm | Same day |
| 9:00 pm | 8:00 pm | Same day |
| 10:00 pm | 9:00 pm | Same day |
| 11:00 pm | 10:00 pm | Same day |
Daylight saving time
Greenwich Mean Time observes daylight saving time; Reykjavík does not. The offset between the two zones changes when Greenwich Mean Time transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:47 AM
- Sunset
- 9:13 PM
- Day length
- 16h 25m
- Sunrise
- 3:15 AM
- Sunset
- 11:39 PM
- Day length
- 20h 25m
Daylight overlap: 16h 25m — 4:47 AM–9:13 PM in Greenwich Mean Time (3:47 AM–8:13 PM in Reykjavík). Both locations are in daylight during this window.
Cities in these zones
Cities in Greenwich Mean Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Greenwich Mean Time
- LCY
- LGW
- LHR
- LTN
- STN
- BHX
- EMA
- GLA
- PIK
- LBA
Airports in Greenwich Mean Time
- KEF
- RKV
Related conversions
Common conversions
- What is 9:00 am GMT in Reykjavík?
- 9:00 am GMT is 8:00 am Reykjavík.
- What is 12:00 pm GMT in Reykjavík?
- 12:00 pm GMT is 11:00 am Reykjavík.
- What is 12:30 pm GMT in Reykjavík?
- 12:30 pm GMT is 11:30 am Reykjavík.
- What is 2:00 pm GMT in Reykjavík?
- 2:00 pm GMT is 1:00 pm Reykjavík.
- What is 5:00 pm GMT in Reykjavík?
- 5:00 pm GMT is 4:00 pm Reykjavík.
- What is 11:30 pm GMT in Reykjavík?
- 11:30 pm GMT is 10:30 pm Reykjavík.