Tehran
Iran
--:-- --
GMT+3:30 · UTC+3:30 1 hour 30 minutes difference
Athens
Greece
--:-- --
GMT+2 · UTC+2 Convert Tehran (GMT+3:30) to Athens (GMT+2) Time — 1 hour 30 minutes apart
Asia/Tehran · GMT+3:30 · UTC+3:30 | Europe/Athens · GMT+2 · UTC+2 · 1 hour 30 minutes difference · 389 cities · DST applies
24-Hour Overlap Timeline
✅ Overlap: 10:00 AM–6:00 PM in Tehran · 9:00 AM–5:00 PM in Athens (8h window)
⚠ Athens observes daylight saving time — offset may vary by up to 1 hour seasonally
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UTC → | ||||||||||||||||||||||||
| 🇮🇷 Tehran UTC+3:30 | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a |
| 🇬🇷 Athens UTC+2 | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a |
Both working Working Off hours Sleeping Now
Key Facts: Tehran (GMT+3:30) vs Athens (GMT+2)
Time Gap
1h 30m
Tehran ahead
May vary ±1h (DST)
DST Status
✅ Tehran
No DST
⏰ Athens: Observes DST
Cities in GMT+3:30
163
Largest: Tehran
14,148,000 pop.
Overlap Window
7h window
11:00 AM – 6:00 PM (GMT+3:30)
9:00 AM – 4:00 PM (GMT+2)
Find Cities in Tehran & Athens Timezones
The GMT+3:30 and GMT+2 timezones are separated by 1 hour 30 minutes. Tehran is the largest city in the Asia/Tehran zone and Athens is the largest in Europe/Athens. Athens observes daylight saving time — the difference may change by 1 hour seasonally. For scheduling between these regions, the key fact is: there are 7 hours of mutual business-hours overlap each day.
Best Times to Schedule Calls: Tehran (GMT+3:30) ↔ Athens (GMT+2)
| Tehran (GMT+3:30) | Athens (GMT+2) | Quality |
|---|---|---|
| 6:00 AM | 4:00 AM | ❌ |
| 7:00 AM | 5:00 AM | ❌ |
| 8:00 AM | 6:00 AM | ❌ |
| 9:00 AM | 7:00 AM | ⚠️ |
| 10:00 AM | 8:00 AM | ⚠️ |
| 11:00 AM | 9:00 AM | ✅ |
| 12:00 PM | 10:00 AM | ✅ |
| 1:00 PM | 11:00 AM | ✅ |
| 2:00 PM | 12:00 PM | ✅ |
| 3:00 PM | 1:00 PM | ✅ |
| 4:00 PM | 2:00 PM | ✅ |
| 5:00 PM | 3:00 PM | ✅ |
| 6:00 PM | 4:00 PM | ⚠️ |
| 7:00 PM | 5:00 PM | ⚠️ |
| 8:00 PM | 6:00 PM | ❌ |
| 9:00 PM | 7:00 PM | ❌ |
| 10:00 PM | 8:00 PM | ❌ |
| 11:00 PM | 9:00 PM | ❌ |
Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.
GMT+3:30 to GMT+2: Complete 24-Hour Time Conversion Table
| Tehran (GMT+3:30) | Athens (GMT+2) | IST (UTC+5:30) |
|---|---|---|
| 12:00 AM | 10:30 PM −1 | 2:00 AM |
| 1:00 AM | 11:30 PM −1 | 3:00 AM |
| ← Date changes in Athens → | ||
| 2:00 AM | 12:30 AM | 4:00 AM |
| 3:00 AM | 1:30 AM | 5:00 AM |
| 4:00 AM | 2:30 AM | 6:00 AM |
| 5:00 AM | 3:30 AM | 7:00 AM |
| 6:00 AM | 4:30 AM | 8:00 AM |
| 7:00 AM | 5:30 AM | 9:00 AM |
| 8:00 AM | 6:30 AM | 10:00 AM |
| 9:00 AM | 7:30 AM | 11:00 AM |
| 10:00 AM | 8:30 AM | 12:00 PM |
| 11:00 AM | 9:30 AM | 1:00 PM |
| 12:00 PM | 10:30 AM | 2:00 PM |
| 1:00 PM | 11:30 AM | 3:00 PM |
| 2:00 PM | 12:30 PM | 4:00 PM |
| 3:00 PM | 1:30 PM | 5:00 PM |
| 4:00 PM | 2:30 PM | 6:00 PM |
| 5:00 PM | 3:30 PM | 7:00 PM |
| 6:00 PM | 4:30 PM | 8:00 PM |
| 7:00 PM | 5:30 PM | 9:00 PM |
| 8:00 PM | 6:30 PM | 10:00 PM |
| 9:00 PM | 7:30 PM | 11:00 PM |
| 10:00 PM | 8:30 PM | 12:00 AM |
| 11:00 PM | 9:30 PM | 1:00 AM |
IST (India Standard Time, UTC+5:30) shown as reference for Indian users. +1/−1 indicates a different calendar day.
163 Cities in Tehran (GMT+3:30) & 226 Cities in Athens (GMT+2) — Page 1 of 2
Tehran & 162 more — Tehran (GMT+3:30, UTC+3:30)
- Tehran, IR 14.1M
- Mashhad, IR 3.7M
- Esfahan, IR 2.2M
- Karaj, IR 2.0M
- Shiraz, IR 1.6M
- Tabriz, IR 1.6M
- Ahvaz, IR 1.3M
- Qom, IR 1.2M
- Kermanshah, IR 947K
- Kerman, IR 738K
- Orumiyeh, IR 736K
- Borvayeh-ye Al Bu `Aziz, IR 690K
- Rasht, IR 680K
- Bahar, IR 673K
- Zahedan, IR 588K
Hamadan, IRYazd, IRArdabil, IRBandar `Abbas, IRArak, IREslamshahr, IRSanandaj, IRQazvin, IRZanjan, IRGorgan, IRShahriar, IRShahr-e Qods, IRKashan, IRMalard, IRMaragheh, IRSarta, IRDezful, IRBabol, IRQa'em Shahr, IRKhomeyni Shahr, IRSabzevar, IRAndimeshk, IRAmol, IRPakdasht, IRNajafabad, IRBorujerd, IRMadan, IRQarchak, IRBojnurd, IRVaramin, IRBandar-e Bushehr, IRNeyshabur, IRSaveh, IRBirjand, IRNasim Shahr, IRKhorramabad, IRKhowy, IRBukan, IRShahr-e Kord, IRSemnan, IRFardis, IRSirjan, IRShahin Shahr, IRMalayer, IRMahabad, IRSaqqez, IRShahrud, IRKhodabandeh, IRBandar-e Mahshahr, IRRafsanjan, IRBorazjan, IRGonbad-e Kavus, IRMarvdasht, IRQuchan, IRJahrom, IRKamalshahr, IRTorbat-e Heydariyeh, IRMarivan, IRShahreza, IRZabol, IRKhorramshahr, IRMarand, IRJiroft, IRSalmas, IRBam, IRBehbahan, IRDorud, IRNazarabad, IRMohammad Shahr, IRBandar-e Anzali, IRIranshahr, IRFasa, IRBaneh, IRYasuj, IRChabahar, IRRobat Karim, IRKashmar, IRShushtar, IRAhar, IRMasjed Soleyman, IRTorbat-e Jam, IRAbhar, IRMianeh, IRDo Gonbadan, IRKazerun, IRBehshahr, IRAlvand, IRPiranshahr, IREslamabad-e Gharb, IRKuhdasht, IRFulad Shahr, IRKhowrasgan, IRTajrish, IRShirvan, IRMeybod, IRTakestan, IRLangarud, IRBumahen, IRBaharestan, IRAligudarz, IRBandar-e Emam Khomeyni, IRBandar Emam, IRQorveh, IRShush, IRNahavand, IRBonab, IRArdakan, IRRamhormoz, IRMeshgin Shahr, IRBandar-e Genaveh, IRNaqadeh, IRKhomeyn, IROmidiyeh, IRAran Bidgol, IRBaqershahr, IRMahdasht, IRMobarakeh, IRMeshkin Dasht, IRNeka, IRKangan, IRAbyek, IRSaravan, IRBabolsar, IREsfarayen, IRDamghan, IRZarand, IRBorujen, IRDehdasht, IRKhash, IRTaybad, IRKut-e `Abdollah, IRZarrin Shahr, IRAsadabad, IRHashtgerd, IRTonekabon, IRKhorramdarreh, IREqbaliyeh, IRJavanrud, IRHashtpar, IRSefrou, MASabbashahr, IRBandar-e Torkaman, IRChenaran, IRBijar, IR`Aliabad-e Katul, IRKahnuj, IRSusangerd, IRTuyserkan, IR
Athens & 225 more — Athens (GMT+2, UTC+2)
- Athens, GR 3.1M
- Kyiv, UA 3.0M
- Bucharest, RO 2.4M
- Kharkiv, UA 1.4M
- Sofia, BG 1.4M
- Helsinki, FI 1.4M
- Odesa, UA 1.0M
- Dnipro, UA 969K
- Donetsk, UA 902K
- Thessaloniki, GR 803K
- Lviv, UA 717K
- Zaporizhzhia, UA 710K
- Tallinn, EE 638K
- Bazal'tove, UA 626K
- Riga, LV 605K
Kryvyi Rih, UAVilnius, LTMykolaiv, UAPiraeus, GRLuhansk, UAVinnytsia, UAVarna, BGPlovdiv, BGMakiivka, UATampere, FINicosia, CYEspoo, FIKaunas, LTCluj-Napoca, ROChernihiv, UAPoltava, UAKherson, UAKhmelnytskyi, UAIasi, ROCherkasy, UAChernivtsi, UAConstanta, ROZhytomyr, UASumy, UATimisoara, ROVantaa, FIRivne, UAHorlivka, UAIvano-Frankivsk, UABrasov, ROLimassol, CYCraiova, ROKamianske, UATernopil, UATyrnavos, GRLutsk, UAKropyvnytskyi, UAGalati, ROKremenchuk, UAOulu, FIIrakleio, GRBurgas, BGBila Tserkva, UATurku, FIOradea, ROPloiesti, ROPatra, GRKlaipeda, LTBraila, ROMelitopol, UAJyvaskyla, FIKramatorsk, UAArad, ROStara Zagora, BGPitesti, RORuse, BGBacau, ROSibiu, ROPeristeri, GRKuopio, FILahti, FIMariupol, UASuceava, ROPleven, BGTargu-Mures, ROUzhhorod, UASliven, BGLarisa, GRBrovary, UABaia Mare, ROAcharnes, GRBerdiansk, UANikopol, UASloviansk, UASiauliai, LTBuzau, ROPavlohrad, UASievierodonetsk, UAKallithea, GRTartu, EEPernik, BGKamianets-Podilskyi, UAHaskovo, BGLysychansk, UARamnicu Valcea, ROKalamaria, GRSatu Mare, ROLarnaca, CYBotosani, ROGlyfada, GRKazanlak, BGNikaia, GRPanevezys, LTDobrich, BGVolos, GRMukacheve, UAPori, FIIlion, GRYambol, BGKonotop, UAResita, ROUman, UAShumen, BGDrobeta-Turnu Severin, ROPiatra Neamt, ROKrasnyi Luch, UAKhrustalnyi, UAEvosmos, GRBistrita, ROKouvola, FIJoensuu, FIDaugavpils, LVBlagoevgrad, BGChalandri, GRIlioupoli, GRYenakiieve, UAOleksandriia, UAKeratsini, GRStakhanov, UAPazardzhik, BGDrohobych, UATargu Jiu, ROBerdychiv, UALappeenranta, FINea Smyrni, GRShostka, UAMarousi, GRAgios Dimitrios, GRBakhmut, UAPaphos, CYIzmail, UAZografos, GRNovomoskovsk, UAVaasa, FIHameenlinna, FIKovel, UAKostiantynivka, UATargoviste, ROVeliko Tarnovo, BGLiepaja, LVFocsani, ROSeinajoki, FIAsenovgrad, BGKavala, GRAigaleo, GRNizhyn, UASmila, UATulcea, RORovaniemi, FIIrpin, UAKalush, UAIoannina, GRPalaio Faliro, GRNea Ionia, GRChervonohrad, UAAlba Iulia, ROBoryspil, UASlatina, ROVaslui, RODovzhansk, UAPervomaisk, UAAgia Paraskevi, GRTrikala, GRKorosten, UAKorydallos, GRKolomyia, UAPetroupoli, GRPallini, GRStryi, UAKaterini, GRVyronas, GRChalkida, GRXanthi, GRSerres, GRCalarasi, ROGalatsi, GRTargovishte, BGRodos, GRKhartsyzk, UAKarditsa, GRVratsa, BGThermi, GRRubizhne, UANovohrad-Volynskyi, UAJelgava, LV
⚠️ Daylight Saving Time Affects This Pair
| Timezone | DST? | Standard | Daylight |
|---|---|---|---|
| Asia/Tehran | No | UTC+3:30 | — |
| Europe/Athens | Yes | UTC+2 | UTC+3 |
During DST periods the time difference between these zones may be 30 minutes instead of 1 hour 30 minutes. Always verify the current offset if scheduling calls near clock-change dates.