Summer Time in Europe

European Summer Time is the variation of standard clock time that is applied in most European countries and Turkey, but not including Iceland, Belarus, and Russia — in the period between spring and autumn, during which clocks are advanced by one hour from the time observed in the rest of the year, in order to make the most efficient use of seasonal daylight. It corresponds to the notion and practice of "daylight saving time" to be found in many other parts of the world.