| Light Blue | Western European Time / Greenwich Mean Time (UTC) |
| Blue | Western European Time / Greenwich Mean Time (UTC) |
| Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1) | |
| Red | Central European Time (UTC+1) |
| Central European Summer Time (UTC+2) | |
| Yellow | Eastern European Time / Kaliningrad Time (UTC+2) |
| Ochre | Eastern European Time (UTC+2) |
| Eastern European Summer Time (UTC+3) | |
| Green | Moscow Time / Turkey Time (UTC+3) |
| Turquoise | Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4) |
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.
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.