Since 1996, European Summer Time has been applied from the last Sunday in March to the last Sunday in October. Previously, the rules were not uniform across the European Union.[1]
Usage
The following countries and territories use Eastern European Summer Time during the summer:
Belarus, Moscow Summer Time in years 1981–89, regular EEST from 1991-2011
Bulgaria, regular EEST since 1979
Cyprus, regular EEST since 1979 (Northern Cyprus stopped using EEST in September 2016, but returned to EEST in March 2018[2])
Egypt, in the years 1988–2010, 2014–2015 and since 2023 (see also Egypt Standard Time)
Estonia, Moscow Summer Time in years 1981–88, regular EEST since 1989
Finland, regular EEST since 1981
Greece, regular EEST since 1975
Israel, Israel Daylight Time since 1948 (which tracks EEST when the two overlap)
Jordan, since 1985 (permanent DST since 2022)
Latvia, Moscow Summer Time in years 1981–88, regular EEST since 1989
Ukraine, Moscow Summer Time in years 1981–89, regular EEST from 1992[3] to 2024.[4]
In 1991, EEST was used also in Moscow and Samara time zones of Russia. Egypt has previously used EEST in 1957–2010 and 2014–2015. Turkey, has previously used EEST in 1970–1978, EEST and Moscow Summer Time in 1979–1983, and EEST in 1985–2016. From 27 October 2024, Ukraine will use permanent Kyiv Time (UTC+2) year-round.[4]