Convert Greenwich Mean Time to Alaska Standard Time (GMT to AKST)

Understanding GMT and AKST Time Zones

Greenwich Mean Time (GMT)

Greenwich Mean Time is observed in undefined and uses the offset UTC+0. Major cities in this time zone include London, Dublin, Lisbon. This time zone covers parts of Europe and/or Africa, home to major financial and cultural centers.

Alaska Standard Time (AKST)

Alaska Standard Time operates at UTC-9, covering undefined. Key cities include Anchorage, Fairbanks. The 9-hour backward offset from GMT means that when professionals in London start their workday at 9:00 AM, it is already 12:00 AM in Anchorage.

GMT is also commonly referred to as London time, UK time, British time, England time. AKST is also known as Alaska Time, Anchorage time. So if you are searching for London time to Alaska Time, this is the same conversion as GMT to AKST.

Complete GMT to AKST Conversion Table

The table below shows every two-hour increment converted from Greenwich Mean Time to Alaska Standard Time. Business hours (9 AM – 5 PM) are highlighted for easy scheduling reference.

Times shown in 12-hour and 24-hour format. Last updated 2026-03-09.

Scheduling Between GMT and AKST

When coordinating deliverables across GMT and AKST, set deadlines in the earlier time zone to avoid end-of-day confusion. A "5 PM deadline" should specify which zone to prevent missed deliveries due to the 9-hour offset.

The significant 9-hour gap between GMT and AKST means that finding overlapping working hours requires compromise from at least one side. Consider adopting asynchronous workflows — recorded video updates, shared documents, and time-zone-aware project management tools — to supplement the limited real-time overlap.

Travel Between London and Anchorage

Flight times between London and Anchorage often appear misleading because of the time zone shift. A departure at 10:00 AM GMT arriving at 2:00 AM AKST may look long, but remember to factor in the 9-hour offset.

Medical experts recommend allowing approximately one day of adjustment per hour of time difference. For the 9-hour shift between GMT and AKST, plan for roughly one week of gradual adjustment for optimal performance.

Daylight Saving Time Considerations

Countries near the equator — including Singapore, most of Africa, and parts of South America — do not observe DST, making their offsets constant year-round. This simplifies scheduling compared to US or European zones.

For the GMT to AKST conversion specifically: GMT (UTC+0) observes DST, while AKST (UTC-9) does not observe DST. This means the offset between them changes by one hour seasonally — the usual 9-hour gap becomes 8 or 10 hours during DST transitions.

Related Time Zone Conversions

References & Resources

• TimeAndDate.com — World Time Zones
• NIST — Official US Time Standard
• IANA Time Zone Database
• Wikipedia — Time Zone Abbreviations
• WorldTimeServer — Current Times Worldwide
• Royal Observatory Greenwich

Frequently Asked Questions