MDT to AKDT Converter
Convert time between Mountain Daylight Time (MDT) and Alaska Daylight Time (AKDT)
Mountain Daylight Time (MDT)
Alaska Daylight Time (AKDT)
Time Difference
Alaska Daylight Time (AKDT) is 0 hours ahead of Mountain Daylight Time (MDT)
Select Date
Select Time
Quick Reference
| MDT | AKDT |
|---|---|
| 20:00 | 18:00 |
| 22:00 | 20:00 |
| 00:00 | 22:00 |
| 02:00 | 00:00 |
| 04:00 | 02:00 |
| 06:00 | 04:00 |
| 08:00 | 06:00 |
| 10:00 | 08:00 |
| 12:00 | 10:00 |
| 14:00 | 12:00 |
| 16:00 | 14:00 |
| 18:00 | 16:00 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
About MDT to AKDT Time Conversion
Converting time between Mountain Daylight Time (MDT) and Alaska Daylight Time (AKDT) bridges Denver, Salt Lake City, Calgary, and the rest of the US Mountain time zone with Anchorage and Fairbanks. MDT is UTC-6 while AKDT is UTC-8, placing AKDT 2 hours behind MDT.
Both regions follow the US daylight saving schedule — second Sunday in March to first Sunday in November — so the 2-hour offset is consistent throughout the DST window. The same offset is preserved year-round when both regions revert to standard time (MST and AKST).
Common Use Cases for MDT to AKDT Conversion
Business & Work
- Scheduling meetings between Mountain US teams and Alaska-based partners
- Coordinating energy industry projects between Wyoming, Montana, or Colorado and Alaska
- Planning conference calls between Denver, Salt Lake City, or Calgary and Anchorage
Personal & Travel
- Planning travel itineraries between the US Mountain region and Alaska
- Coordinating with family and friends in Alaska from the Mountain time zone
- Scheduling virtual events for MDT and AKDT audiences
Time Zone Information
Mountain Daylight Time (MDT)
- UTC Offset: UTC-6 (UTC-7 during MST)
- IANA Timezone: America/Denver
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: Denver, Salt Lake City, Albuquerque, El Paso, Boise, Calgary, Edmonton
- Coverage: Mountain United States and parts of Canada during daylight saving period
Alaska Daylight Time (AKDT)
- UTC Offset: UTC-8
- IANA Timezone: America/Anchorage
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: Anchorage, Fairbanks, Juneau, Sitka
- Coverage: Most of Alaska during daylight saving period
Quick Reference: MDT to AKDT
Remember: AKDT is always 2 hours behind MDT during overlapping daylight saving periods
Frequently Asked Questions
What is the time difference between MDT and AKDT?
Mountain Daylight Time (MDT) is UTC-6, while Alaska Daylight Time (AKDT) is UTC-8. AKDT is 2 hours behind MDT. When it is 12:00 PM in Denver, it is 10:00 AM in Anchorage.
When does this MDT to AKDT conversion apply?
Both regions follow the US daylight saving schedule, from the second Sunday in March to the first Sunday in November. The 2-hour offset is consistent throughout the entire DST window.
How does the time difference change throughout the year?
When DST ends (first Sunday in November), Alaska switches to AKST (UTC-9) and the Mountain US switches to MST (UTC-7). The 2-hour offset is preserved year-round. Arizona stays on MST year-round, so the offset to Arizona drops to 1 hour during AKDT.
What are the best times for MDT-AKDT business calls?
Late morning in Denver (11:00 AM MDT) is 9:00 AM in Anchorage — a strong overlap window. The 2-hour gap means most of the working day overlaps cleanly.
Which countries/regions use AKDT timezone?
AKDT covers most of Alaska during daylight saving, including Anchorage, Fairbanks, Juneau, and Sitka. The Aleutian Islands use Hawaii-Aleutian Time and follow a different rule set.
Which countries/regions use MDT timezone?
MDT is observed in the Mountain US during daylight saving — Denver, Salt Lake City, Albuquerque, El Paso, Boise, plus Calgary and Edmonton in Canada. Arizona stays on MST year-round and does not observe MDT.
Pro Tips
- • AKDT is 2 hours behind MDT — subtract 2 hours from a Denver time to get the Anchorage time.
- • Both regions transition to/from DST on the same dates, so the 2-hour offset is stable throughout the DST window.
- • Best meeting window: 11:00 AM–5:00 PM MDT overlaps with 9:00 AM–3:00 PM AKDT — most of both regions' core working hours.
- • When DST ends in November, the offset stays at 2 hours (MST-AKST = UTC-7 vs UTC-9).
- • Use IANA identifiers (America/Denver and America/Anchorage) in calendar tools to handle DST transitions automatically.
- • For Arizona (which doesn't observe DST), use the MST-AKDT page during summer instead.