Eastern European Summer Time (EEST) is one of the names of UTC+3 time zone, 3 hours ahead of Coordinated Universal Time. It is used as a summer daylight saving time in some European and Middle Eastern countries, which makes it the same as Arabia Standard Time, East Africa Time and Moscow Time. During the winter periods, Eastern European Time (UTC+2) is used.
Since 1996 European Summer Time has been observed from the last Sunday in March to the last Sunday in October; previously the rules were not uniform across the European Union.
The following countries and territories use Eastern European Summer Time during the summer:
Belarus, Moscow Summer Time in years 1981–89, regular EEST since 1991
Bulgaria, regular EEST since 1979
Cyprus, regular EEST since 1979 (Northern Cyprus stopped using EEST in 2016)
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
Latvia, Moscow Summer Time in years 1981–88, regular EEST since 1989
Lebanon, since 1984
Lithuania, Moscow Summer Time in years 1981–88, regular EEST since 1989, apart from in years 1998-2003 when it was Central European Summer Time
Moldova, Moscow Summer Time in years 1932–40 and 1981–89, regular EEST since 1991
Romania, unofficial EEST in years 1932–40, regular EEST since 1979
Russia (Kaliningrad), Moscow Summer Time in years 1981–90, regular EEST since 1991, as standard time from March 2011.
Syria, since 1983
Ukraine, Moscow Summer Time in years 1981–89, regular EEST from 1992
In one year 1991 EEST was used also in Moscow and Samara time zones of Russia. Egypt has previously used EEST from 1957–2010 and 2014–2015. Turkey, has previously used EEST from 1970-1978 EEST, Moscow Summer Time from 1979–1983, and EEST from 1985-2016.
