Convert Eastern European Summer Time to Iran Standard Time
Instantly convert Eastern European Summer Time (EEST) to Iran Standard Time (IRST) with our free online calculator.
Eastern European Summer Time
08:20:55 AM
Wed, Jun 24 (EEST)
Iran Standard Time
08:50:55 AM
Wed, Jun 24 (IRST)
Convert a Specific Time
24-Hour Comparison
| EEST | IRST |
|---|---|
| 12:00 AM | 0.5:00 AM |
| 1:00 AM | 1.5:00 AM |
| 2:00 AM | 2.5:00 AM |
| 3:00 AM | 3.5:00 AM |
| 4:00 AM | 4.5:00 AM |
| 5:00 AM | 5.5:00 AM |
| 6:00 AM | 6.5:00 AM |
| 7:00 AM | 7.5:00 AM |
| 8:00 AM | 8.5:00 AM |
| 9:00 AM | 9.5:00 AM |
| 10:00 AM | 10.5:00 AM |
| 11:00 AM | 11.5:00 AM |
| 12:00 PM | 0.5:00 PM |
| 1:00 PM | 1.5:00 PM |
| 2:00 PM | 2.5:00 PM |
| 3:00 PM | 3.5:00 PM |
| 4:00 PM | 4.5:00 PM |
| 5:00 PM | 5.5:00 PM |
| 6:00 PM | 6.5:00 PM |
| 7:00 PM | 7.5:00 PM |
| 8:00 PM | 8.5:00 PM |
| 9:00 PM | 9.5:00 PM |
| 10:00 PM | 10.5:00 PM |
| 11:00 PM | 11.5:00 PM |
How to Convert Eastern European Summer Time to Iran Standard Time
Formula
To convert Eastern European Summer Time (EEST) to Iran Standard Time (IRST): Convert EEST to IRST
About Eastern European Summer Time (EEST)
Eastern European Summer Time (EEST, IANA: Europe/Athens during DST window) is the summer-time variant of EET, set at UTC+3:00 — observed from the last Sunday of March to the last Sunday of October per EU Directive 2000/84/EC. EEST shares the same UTC offset as Moscow Standard Time (MSK), Saudi Arabia Standard Time (AST-SA), and East Africa Time (EAT). After the 2018 EU proposal to abolish twice-yearly clock changes (postponed indefinitely), the question of whether EEST countries would permanently stay on summer time (UTC+3) or revert to year-round EET (UTC+2) remains unresolved. EEST serves the same ~50 million population as EET (Greece, Cyprus, Bulgaria, Romania, Moldova, Ukraine, Lithuania, Latvia, Estonia, Finland). Affects: ASE (Athens Stock Exchange) summer trading hours, summer-festival schedules in Greek islands (Mykonos, Santorini, Ios), Finnish midsummer Juhannus celebrations, and Black Sea cruise-ship port arrival times at Constanța Romania + Varna Bulgaria + Odesa Ukraine.
About Iran Standard Time (IRST)
Iran Standard Time (IRST, IANA: Asia/Tehran) is the civil time of the Islamic Republic of Iran, set at UTC+3:30 — one of the world's few 30-minute-offset time zones. IRST observes Daylight Saving Time (switching to IRDT = UTC+4:30) from the last Wednesday of the Iranian month of Farvardin (~March 22) to the last Wednesday of Shahrivar (~September 22) per Iranian government calendar (the country abolished DST in 2022 then partially reinstated it for energy savings — the schedule is subject to change by Iranian Parliament Majlis decree). The 30-minute offset is preserved because Iran's central meridian is approximately 52.5°E, between UTC+3 and UTC+4 standard zones, and the Iranian Solar Hijri calendar has its own astronomical traditions for time-keeping. IRST serves approximately 88 million Iranian people across 31 provinces. Major cities: Tehran (8.7M city, 13M metro — capital), Mashhad (3.1M), Isfahan (2.2M), Karaj (1.6M), Shiraz (1.6M), Tabriz (1.6M), Qom (1.2M). Other 30/45-minute offset zones: India (UTC+5:30), Nepal (UTC+5:45), Myanmar (UTC+6:30), Newfoundland (UTC-3:30), Afghanistan (UTC+4:30), Marquesas (UTC-9:30). Affects: Tehran Stock Exchange (TSE) trading, Iranian Solar Hijri New Year Nowruz celebrations.