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Daylight Saving Time–First Half of 2021

Daylight Saving Time (DST) is often incorrectly referred to as “daylight savings time”. In some countries, it is also called “summer time”. When DST is not observed, it is called standard time, normal time or winter time.

This list displays a brief (but not complete) overview showing the countries and territories which plan to observe DST during the first half of 2021. Note that this list might not be final - countries, territories, and states sometimes make adjustments which are announced just days or weeks ahead of the time change.

Also, please see the page for the second half of 2021 or the overview over start and end times for 2021 sorted by country.

DateCountryLocal Time Change
Jan 17 Sun
  • Fiji (All locations)
3:00 am → 2:00 am (Back)
Feb 21 Sun
  • Brazil (Some locations observing DST)
12:00 am → 11:00 pm (Back)
Mar 14 Sun
  • Cuba (All locations)
12:00 am → 1:00 am (Forward)
Mar 14 Sun2:00 am → 3:00 am (Forward)
Mar 21 Sun1:00 am → 3:00 am (Forward)
Mar 22 Mon
  • Iran (All locations)
12:00 am → 1:00 am (Forward)
Mar 26 Fri12:00 am → 1:00 am (Forward)
Mar 26 Fri2:00 am → 3:00 am (Forward)
Mar 27 Sat1:00 am → 2:00 am (Forward)
Mar 27 Sat10:00 pm → 11:00 pm (Forward)
Mar 28 Sun12:00 am → 11:00 pm (Back)
Mar 28 Sun12:00 am → 1:00 am (Forward)
Mar 28 Sun1:00 am → 2:00 am (Forward)
Mar 28 Sun2:00 am → 3:00 am (Forward)
Mar 28 Sun3:00 am → 4:00 am (Forward)
Apr 3 Sat10:00 pm → 9:00 pm (Back)
Apr 4 Sun
  • Chile (Most locations observing DST)
12:00 am → 11:00 pm (Back)
Apr 4 Sun2:00 am → 1:30 am (Back)
Apr 4 Sun
  • Mexico (Most locations observing DST)
2:00 am → 3:00 am (Forward)
Apr 4 Sun3:00 am → 2:00 am (Back)
Apr 4 Sun3:45 am → 2:45 am (Back)
Apr 4 Sun4:00 am → 3:00 am (Back)

Daylight Saving Time for other years

Yearly OverviewJanuary–JuneJuly–December
2019first half of 2019second half of 2019
2020first half of 2020second half of 2020
2021first half of 2021second half of 2021
2022first half of 2022second half of 2022
2023first half of 2023second half of 2023

Other years


Daylight Saving Time – DST

  1. One Hour Back or Forward?
  2. What Is Standard Time?
  3. Savings or Saving?
  4. Pros and Cons of DST
  5. Your Health and DST
  6. Summer or Winter Time?
  7. History of DST
  8. DST in the USA
  9. History of DST in Europe
  10. How Does DST Work?
  11. DST Statistics

Time Zones & DST

Time Zone Map With DST

Time Zone Map

Time Zone Library

  1. What Is a Time Zone?
  2. How Many Time Zones Are There?
  3. What Is Standard Time?
  4. Half Hour & 45 Minute Time Zones
  5. What's the International Date Line?
  6. Why Do We Have Time Zones?

Time Zones Worldwide

DST Worldwide 2016

Map of DST locations worldwide

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