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.
World Map showing DST usage over time
Who has been using DST and not?
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 worldwide: Dates and local times
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.
https://www.timeanddate.com/time/dst/statistics.html
