Top Answer: Which Countries Do Not Use DST in 2026?
Over 125 countries—representing roughly 60% of the world's population—do not observe Daylight Saving Time in 2026. Major nations on permanent standard time include China, India, Japan, Russia, South Korea, Turkey, Brazil, Argentina, Saudi Arabia, and nearly all countries across Africa, Asia, and Central America. Additionally, non-DST jurisdictions exist within DST-observing countries, such as Arizona and Hawaii in the United States, Saskatchewan in Canada, and Queensland and Western Australia in Australia.
Guide Contents
- 1. Why ~60% of the World Does Not Use DST
- 2. Visual Science: Latitude & Equatorial Solar Stability
- 3. Complete Country List by Continent
- 4. Exempt States & Territories Within DST Nations
- 5. Countries That Abandoned DST (Russia, Turkey, Brazil, Mexico)
- 6. Comparison Table: Permanent Standard Time vs. DST Nations
- 7. Business & Technical Advantages of Permanent Standard Time
- 8. Guidelines for Scheduling Meetings with Non-DST Regions
- 9. Frequently Asked Questions (20 Detailed FAQs)
- 10. Interactive Tools & Related Guides
1. Why ~60% of the World Does Not Use DST
While North America and Europe dominate media discussions about clock changes, the vast majority of human beings live in nations operating on permanent standard time. Understanding why these nations skip DST involves analyzing equatorial astronomy, agricultural needs, and national economic strategies.
To review how DST functions in participating regions, check out our guide on what is Daylight Saving Time as well as our global breakdown of countries that use DST and our transition dates on DST start and end dates.
2. Visual Science: Latitude & Equatorial Solar Stability
The SVG illustration below compares seasonal daylight variation near the equator (e.g., Singapore or Kenya) with mid-latitude locations (e.g., London or New York).
Figure 1: Comparison of daylight fluctuation between equatorial non-DST regions and mid-latitude DST regions.
3. Complete Country List by Continent
The list of non-DST nations spans entire continents where standardized time remains untouched:
- Asia: China, India, Japan, South Korea, Indonesia, Philippines, Vietnam, Thailand, Malaysia, Singapore, Pakistan, Bangladesh, Saudi Arabia, UAE, Qatar, Vietnam. Learn more about regional times in our India time zone guide and Tokyo time guide.
- Africa: Nigeria, South Africa, Kenya, Ethiopia, Ghana, Senegal, Tanzania, Uganda, Algeria, Morocco, Angola (Egypt is the sole exception observing DST in 2026).
- South America: Brazil, Argentina, Colombia, Peru, Venezuela, Ecuador, Bolivia.
- Central America & Caribbean: Costa Rica, Panama, Guatemala, El Salvador, Honduras, Nicaragua, Jamaica, Dominican Republic.
- Europe (Exemptions): Russia, Belarus, Turkey, Iceland.
4. Exempt States & Territories Within DST Nations
Several sub-national territories opt out of clock changes even when their federal government observes DST:
- United States: Arizona (opted out in 1968 to avoid extending desert heat into summer evenings) and Hawaii (tropical latitude). For complete timezone mappings, see our USA time zones guide.
- Canada: Saskatchewan remains on Central Standard Time (CST) year-round. Yukon adopted permanent standard time in 2020. Read more in our Canada time zones guide.
- Australia: Queensland, Western Australia, and the Northern Territory do not shift clocks. Visit our Australia time zones guide for state details, or check AWST to EST and AEST to EST.
5. Countries That Abandoned DST (Russia, Turkey, Brazil, Mexico)
Over the past two decades, several major nations permanently abolished seasonal clock shifts:
- Russia (2014): Abandoned seasonal changes after experiencing public friction under permanent summer time, switching to permanent standard winter time.
- Turkey (2016): Moved permanently to UTC+3, keeping evening sunlight year-round.
- Brazil (2019): Abolished DST nationwide after government studies proved electricity grid savings were minimal.
- Mexico (2022): Repealed national DST, preserving it only along northern border commercial nodes.
Read about the broader historical motivations in our guides on why DST exists and the history of DST.
6. Comparison Table: Permanent Standard Time vs. DST Nations
Comparing operational environments between DST and non-DST nations:
| Factor / Dimension | Permanent Standard Time Nations | Daylight Saving Time Nations |
|---|---|---|
| UTC Offset Stability | Fixed year-round (e.g., India IST UTC+5:30). | Shifts +1 hour in summer (e.g., US East UTC-5 to UTC-4). |
| Server & Database Maintenance | Zero clock transition anomalies or cron glitches. | Requires careful handling of ambiguous 1:00 AM–2:00 AM hours. |
| Public Health & Sleep | Consistent circadian rhythms year-round. | Acute sleep loss & health spikes in spring transition. |
| Evening Natural Light | Follows natural astronomical sunset time. | Artificially extended by 60 minutes in summer. |
| Major Regional Examples | China, India, Japan, Russia, Brazil, Arizona. | US, Canada, UK, EU, Southern Australia. |
7. Business & Technical Advantages of Permanent Standard Time
Operating on permanent standard time delivers key business advantages:
- Predictable IT Systems: Systems rely on fixed log timestamps without offset ambiguity. Technical details are covered in our guides on Unix time explained and ISO 8601 formatting.
- Consistent Logistics: Flight, rail, and freight schedules operate without seasonal shift adjustments.
- Reduced Operational Costs: Eliminates workforce scheduling overhead and workplace injury spikes during transition weeks. Read more in our business impact of DST guide.
8. Guidelines for Scheduling Meetings with Non-DST Regions
When scheduling cross-border meetings between DST and non-DST countries, remember that time differences shift twice a year when the DST-observing nation shifts its clocks.
For example, when converting between London (London time) and Tokyo (Tokyo time), the time difference is 9 hours during GMT winter, but narrows to 8 hours during BST summer. Use our GMT to EST converter, EST to GMT converter, and GMT vs EST comparison tools to track shifts.
9. Frequently Asked Questions (FAQ)
What percentage of the world's population does not observe Daylight Saving Time?
Approximately 60% to 64% of the world's population lives in countries or regions that do not observe Daylight Saving Time.
Does China observe Daylight Saving Time?
No. China abolished DST in 1991 and operates on a single national timezone, China Standard Time (CST, UTC+8), year-round.
Does India use Daylight Saving Time?
No. India operates on Indian Standard Time (IST, UTC+5:30) year-round without daylight saving shifts.
Does Japan observe Daylight Saving Time?
No. Japan experimented with DST between 1948 and 1951 but abandoned it due to strong opposition from agricultural and labor groups. Japan remains on Japan Standard Time (JST, UTC+9) year-round.
Does Russia use Daylight Saving Time in 2026?
No. Russia abolished seasonal clock changes in 2014 and maintains permanent standard time across all 11 of its timezones.
Why do equatorial nations skip Daylight Saving Time?
Near the equator, daylight hours remain relatively constant year-round (approx 12 hours of light and 12 hours of night). Setting clocks forward yields no practical benefit.
Which states in the US do not observe DST?
Hawaii and Arizona (except for the Navajo Nation) do not observe DST. US territories such as Puerto Rico, Guam, and the US Virgin Islands also observe permanent standard time.
Does Saskatchewan in Canada observe Daylight Saving Time?
Most of Saskatchewan maintains Central Standard Time (CST, UTC-6) year-round, opting out of seasonal clock adjustments.
Does Queensland in Australia use DST?
No. Queensland, Western Australia, and the Northern Territory do not observe DST. Only Australia's southern states (NSW, VIC, SA, TAS, ACT) shift clocks.
When did Turkey abandon Daylight Saving Time?
Turkey abandoned seasonal clock changes in 2016, opting to remain permanently on UTC+3 year-round.
Does Brazil use Daylight Saving Time?
No. Brazil suspended DST in 2019 under executive decree, citing negligible energy savings and improved public sleep health.
Does Argentina observe DST?
No. Argentina suspended nationwide DST in 2009 and operates permanently on ART (UTC-3).
Does Iceland observe Daylight Saving Time?
No. Iceland has operated on Greenwich Mean Time (GMT, UTC+0) year-round since 1968 due to its high latitude where summer daylight is nearly continuous regardless of clock adjustments.
Does Thailand or Vietnam observe DST?
No. Tropical Southeast Asian nations including Thailand, Vietnam, Malaysia, Indonesia, and the Philippines operate on permanent standard time.
Why did Mexico abolish Daylight Saving Time in 2022?
Mexico abolished DST nationally in October 2022 to reduce health disruptions and streamline national schedules, leaving only northern border municipalities synchronized with the US.
What is the economic advantage of permanent standard time?
Permanent standard time eliminates system downtime, server scheduling errors, sleep deprivation productivity dips, and cross-border confusion caused by twice-yearly clock shifts.
How does scheduling meetings with non-DST countries work?
Because non-DST countries keep fixed offsets relative to UTC, their time difference with DST-observing countries shifts by 1 hour twice a year when the DST-observing nation moves its clock.
What is the offset of India relative to EST?
During US winter (EST, UTC-5), India (IST, UTC+5:30) is 10 hours and 30 minutes ahead. During US summer (EDT, UTC-4), India is 9 hours and 30 minutes ahead.
What is the offset of Japan relative to GMT?
Japan (JST, UTC+9) is 9 hours ahead of GMT (UTC+0) in winter. In summer when the UK moves to BST (UTC+1), Japan is 8 hours ahead of BST.
Do chronobiologists prefer permanent standard time or permanent DST?
The majority of sleep scientists and chronobiologists strongly advocate for permanent standard time because it aligns morning light with biological human wake cycles.
10. Interactive Tools & Related Guides
Explore our free conversion tools to calculate exact meeting times across fixed and shifting time zones: