IST to AKDT Converter
Convert time between India Standard Time (IST) and Alaska Daylight Time (AKDT)
India Standard Time (IST)
Alaska Daylight Time (AKDT)
Time Difference
Alaska Daylight Time (AKDT) is 0 hours ahead of India Standard Time (IST)
Select Date
Select Time
Quick Reference
| IST | AKDT |
|---|---|
| 07:30 | 18:00 |
| 09:30 | 20:00 |
| 11:30 | 22:00 |
| 13:30 | 00:00 |
| 15:30 | 02:00 |
| 17:30 | 04:00 |
| 19:30 | 06:00 |
| 21:30 | 08:00 |
| 23:30 | 10:00 |
| 01:30 | 12:00 |
| 03:30 | 14:00 |
| 05:30 | 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 IST to AKDT Time Conversion
Converting time between India Standard Time (IST) and Alaska Daylight Time (AKDT) bridges Mumbai, Delhi, Bengaluru, and the rest of India with Anchorage and Fairbanks. IST is UTC+5:30 while AKDT is UTC-8, placing AKDT 13 hours and 30 minutes behind IST — an unusual half-hour offset that almost always shifts conversions onto the previous calendar day.
This converter uses the IANA timezone database for accurate calculations. India does not observe daylight saving time, so IST is constant year-round. AKDT is in effect from March to November; the 13:30 offset applies during that window. After DST ends, the offset becomes 14:30 between IST and AKST.
Common Use Cases for IST to AKDT Conversion
Business & Work
- Scheduling meetings between Indian technology partners and Alaska-based teams
- Coordinating outsourcing and offshore project deadlines across regions
- Planning conference calls between Mumbai, Delhi, or Bengaluru and Anchorage
Personal & Travel
- Planning travel itineraries between India and Alaska
- Coordinating with family and friends in Alaska from India
- Scheduling virtual events for IST and AKDT audiences
Time Zone Information
India Standard Time (IST)
- UTC Offset: UTC+5:30
- IANA Timezone: Asia/Kolkata
- Daylight Saving: India does not observe daylight saving time
- Major Cities: Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune
- Coverage: India year-round; also observed in Sri Lanka with the same UTC+5:30 offset
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: IST to AKDT
Remember: AKDT is always 13 hours 30 minutes behind IST during Alaska's daylight saving period
Frequently Asked Questions
What is the time difference between IST and AKDT?
India Standard Time (IST) is UTC+5:30, while Alaska Daylight Time (AKDT) is UTC-8. AKDT is 13 hours and 30 minutes behind IST. When it is 12:00 PM in Mumbai or Delhi, it is 10:30 PM the previous day in Anchorage.
When does this IST to AKDT conversion apply?
AKDT runs from the second Sunday in March to the first Sunday in November. India does not observe DST and stays on IST year-round. The 13:30 offset applies during Alaska's DST window.
How does the time difference change throughout the year?
When Alaska reverts to AKST (UTC-9) in November, the offset to IST grows to 14:30. IST itself never changes — India does not observe daylight saving.
What are the best times for IST-AKDT business calls?
Late morning in Mumbai (10:00 AM IST) is 8:30 PM the previous day in Anchorage — workable for both sides. The 13:30 gap means most live overlap is at the edges of each working day.
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 IST timezone?
IST (UTC+5:30) is observed in India and Sri Lanka. Major cities include Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, and Pune. Note: "IST" can also mean Israel Standard Time (UTC+2) — on this site it always refers to India Standard Time.
Pro Tips
- • AKDT is 13:30 behind IST — subtract 13 hours and 30 minutes from a Mumbai time to get the Anchorage time.
- • Most IST to AKDT conversions cross into the previous calendar day in Alaska.
- • Best meeting window: 10:00 AM–12:00 PM IST overlaps with 8:30–10:30 PM previous-day AKDT.
- • India does not observe DST. Only the AKDT side shifts; IST is constant year-round.
- • Use IANA identifiers (Asia/Kolkata and America/Anchorage) in calendar tools to handle DST transitions automatically.
- • When Alaska reverts to AKST in November, the offset becomes 14:30. The half-hour offset persists year-round.