During 2018, daylight saving time is in effect from March 13, 2018 at 2 a.m. (local time) to November 6, 2018 at 2 a.m. (local time). Daylight saving time 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 over which countries and territories that plan to observe DST during . Note that the list might not be final - countries, territories and states sometimes make adjustments that are announced just days or weeks ahead of the change. Detailed information is available for the first half of 2018 and the second half of 2018.
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When is Daylight Saving?
Most of the US, Canada and Mexico's northern border cities will start Daylight Saving Time (DST) at 2 am (02:00) local time on March 13, 2018. The clocks will "spring forward" (by shifting the clock forward) an hour to daylight time, so that evenings have more daylight and mornings have less. The most of Europe will start DST on the last Sunday in March. Most of North America shifts at 02:00 local time, so its zones do not shift at the same time; for example, Mountain Time can be temporarily either zero or two hours ahead of Pacific Time.
Daylight saving time - also summer time in several countries - is the practice of advancing clocks so that evenings have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn. The modern idea of daylight saving was first implemented during the First World War. Many countries have used it at various times since then.
The practice has been both praised and criticized. Adding daylight to evenings benefits retailing, sports, and other activities that exploit sunlight after working hours, but can cause problems for evening entertainment and other occupations tied to the sun. Although an early goal of DST was to reduce evening usage of incandescent lighting, formerly a primary use of electricity, modern heating and cooling usage patterns differ greatly, and research about how Daylight Saving Time currently affects energy use is limited or contradictory.
Starting in 2007, most of the United States and Canada observe DST from the second Sunday in March to the first Sunday in November, almost two-thirds of the year. The 2007 US change was part of the Energy Policy Act of 2005; previously, from 1987 through 2006, the start and end dates were the first Sunday in April and the last Sunday in October, and Congress retains the right to go back to the previous dates now that an energy-consumption study has been done.
Daylight saving time - also summer time in several countries - is the practice of advancing clocks so that evenings have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn. The modern idea of daylight saving was first implemented during the First World War. Many countries have used it at various times since then.
The practice has been both praised and criticized. Adding daylight to evenings benefits retailing, sports, and other activities that exploit sunlight after working hours, but can cause problems for evening entertainment and other occupations tied to the sun. Although an early goal of DST was to reduce evening usage of incandescent lighting, formerly a primary use of electricity, modern heating and cooling usage patterns differ greatly, and research about how Daylight Saving Time currently affects energy use is limited or contradictory.
Starting in 2007, most of the United States and Canada observe DST from the second Sunday in March to the first Sunday in November, almost two-thirds of the year. The 2007 US change was part of the Energy Policy Act of 2005; previously, from 1987 through 2006, the start and end dates were the first Sunday in April and the last Sunday in October, and Congress retains the right to go back to the previous dates now that an energy-consumption study has been done.
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