Eastern European Summer Time (EEST) is one of the names of UTC+3 time zone. This zone is 3 hours ahead of Coordinated Universal Time. It is used as a summer daylight saving time in some European, North African, and Middle Eastern countries. During the winter, the Eastern European Time (UTC+2) is used.
Usage
The following countries and territories use Eastern European Summer Time during the summer:
Belarus, from 1991-2011, now observes Moscow Time all year long
Bulgaria, regularly since 1979
Cyprus, regularly since 1979, Northern Cyprus returned to EET on 29 October 2017
Egypt, used from 1970- 20 April 2011 and again from 16 May 2014- 20 April 2015
Estonia, in years 1981-88 Moscow Summer Time, regularly EEST since 1989
Finland, regularly since 1981
Greece, regularly since 1975
Israel, regularly since 1948
Jordan, since 1985
Latvia, in years 1981-88 Moscow Summer Time, regularly EEST since 1989
Lebanon, since 1984
Lithuania, in years 1981-88 Moscow Summer Time, regularly EEST since 1989, in years 1998 was changed to Central European Summer Time, but returned to EEST since 2003 Moldova, in years 1981-89 Moscow Summer Time, regularly EEST since 1991 Romania, regularly since 1979 Russia (Kaliningrad), in years 1981-90 Moscow Summer Time, regularly EEST since 1991 Syria, since 1983 Turkey, from 1970-78 and 1985-2016, now observes Turkey Time all year long Ukraine, in years 1981-89 Moscow Summer Time, regularly EEST since 1992, but sections of Ukraine including Crimea, Dontesk, and Luhansk have switched to Moscow Time all year long in March 2014.
In 1991 EEST was used also in Moscow and Samara time zones of Russia.