Time zones of Europe in relation to UTC:
Blue Western European Time (UTC±00:00)
Western European Summer Time (UTC+01:00)
Light Blue Western European Time (UTC±00:00)
Red Central European Time (UTC+01:00)
Central European Summer Time (UTC+02:00)
Ochre Eastern European Time (UTC+02:00)
Eastern European Summer Time (UTC+03:00)
Yellow Kaliningrad Time (UTC+02:00)
Green Moscow Time / Turkish Time (UTC+03:00)
 Pale colours: Standard time observed all year
 Dark colours: Summer time observed

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:

In 1991 EEST was used also in Moscow and Samara time zones of Russia.