Daylight Saving Time Statistics
Statistical and historical overview of Daylight Saving Time (DST), including use per continent, number of countries using DST, and a list of past and present DST use worldwide.
During DST clocks are normally set forward one hour from standard time during the summer months and back again in the fall to make better use of natural daylight.
DST per Continent
Less than 40% of the countries in the world use DST today. Since daylength variations are negligible around the equator, most tropical territories do not change their clocks.
|Continent *||DST in 2021||No Longer Using DST||Never Used DST|
|Africa||2 countries||16 countries||38 countries|
|Asia||7 countries||25 countries||19 countries|
|Australia & Pacific||5 countries||3 countries||11 countries|
|Europe||49 countries||5 countries||1 country|
|North America||8 countries||11 countries||20 countries|
|South America||2 countries||7 countries||5 countries|
|* Countries that belong to 2 continents are counted in both continents.|
Number of Countries Using DST
DST is controversial. More than 140 countries have used it at some point, but about half of them have since abolished it again.
|Countries that have used DST at least once||143||USA|
|Countries using DST in 2021||75||USA|
|Countries no longer using DST||68||India|
|Countries that have never used DST||106||Indonesia|
|Most years with DST||109||Canada|
|Least years with DST||1||Bangladesh|
Countries Using DST the Last 10 Years
|Year||Countries Using DST||Countries Starting *||Countries Ending **|
|2018||75||Turks and Caicos Islands||Namibia, Tonga|
|2016||77||Tonga||Uruguay, Azerbaijan, Haiti and 1 more|
|* Countries that are using DST this year, but not the year before. DST can have been used in earlier years.|
** Countries that are not using DST this year, but did the year before.
DST Use Worldwide—Past and Present
DST has been in use over 100 years, but most countries that have used DST have not used it all that time. Find out about your country in the table below.