Tehran
Iran
--:-- --
GMT+3:30 · UTC+3:30 5 hours 30 minutes difference
Tokyo
Japan
--:-- --
GMT+9 · UTC+9 Convert Tehran (GMT+3:30) to Tokyo (GMT+9) Time — 5 hours 30 minutes apart
Asia/Tehran · GMT+3:30 · UTC+3:30 | Asia/Tokyo · GMT+9 · UTC+9 · 5 hours 30 minutes difference · 763 cities
24-Hour Overlap Timeline
✅ Overlap: 9:00 AM–12:00 PM in Tehran · 3:00 PM–6:00 PM in Tokyo (3h window)
| 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 |
| 🇯🇵 Tokyo UTC+9 | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a |
Both working Working Off hours Sleeping Now
Key Facts: Tehran (GMT+3:30) vs Tokyo (GMT+9)
Time Gap
5h 30m
Tokyo ahead
DST Status
✅ Tehran
No DST
✅ Tokyo: No DST
Cities in GMT+3:30
163
Largest: Tehran
14,148,000 pop.
Overlap Window
4h window
9:00 AM – 1:00 PM (GMT+3:30)
2:00 PM – 6:00 PM (GMT+9)
Find Cities in Tehran & Tokyo Timezones
The GMT+3:30 and GMT+9 timezones are separated by 5 hours 30 minutes. Tehran is the largest city in the Asia/Tehran zone and Tokyo is the largest in Asia/Tokyo. Neither timezone observes daylight saving time, so the difference is constant year-round. For scheduling between these regions, the key fact is: there are 4 hours of mutual business-hours overlap each day.
Best Times to Schedule Calls: Tehran (GMT+3:30) ↔ Tokyo (GMT+9)
| Tehran (GMT+3:30) | Tokyo (GMT+9) | Quality |
|---|---|---|
| 1:00 AM | 6:00 AM | ❌ |
| 2:00 AM | 7:00 AM | ❌ |
| 3:00 AM | 8:00 AM | ❌ |
| 4:00 AM | 9:00 AM | ❌ |
| 5:00 AM | 10:00 AM | ❌ |
| 6:00 AM | 11:00 AM | ❌ |
| 7:00 AM | 12:00 PM | ⚠️ |
| 8:00 AM | 1:00 PM | ⚠️ |
| 9:00 AM | 2:00 PM | ✅ |
| 10:00 AM | 3:00 PM | ✅ |
| 11:00 AM | 4:00 PM | ✅ |
| 12:00 PM | 5:00 PM | ✅ |
| 1:00 PM | 6:00 PM | ⚠️ |
| 2:00 PM | 7:00 PM | ⚠️ |
| 3:00 PM | 8:00 PM | ❌ |
| 4:00 PM | 9:00 PM | ❌ |
| 5:00 PM | 10:00 PM | ❌ |
| 6:00 PM | 11:00 PM | ❌ |
| 7:00 PM | 12:00 AM +1 day | ❌ |
| 8:00 PM | 1:00 AM +1 day | ❌ |
| 9:00 PM | 2:00 AM +1 day | ❌ |
Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.
GMT+3:30 to GMT+9: Complete 24-Hour Time Conversion Table
| Tehran (GMT+3:30) | Tokyo (GMT+9) | IST (UTC+5:30) |
|---|---|---|
| 12:00 AM | 5:30 AM | 2:00 AM |
| 1:00 AM | 6:30 AM | 3:00 AM |
| 2:00 AM | 7:30 AM | 4:00 AM |
| 3:00 AM | 8:30 AM | 5:00 AM |
| 4:00 AM | 9:30 AM | 6:00 AM |
| 5:00 AM | 10:30 AM | 7:00 AM |
| 6:00 AM | 11:30 AM | 8:00 AM |
| 7:00 AM | 12:30 PM | 9:00 AM |
| 8:00 AM | 1:30 PM | 10:00 AM |
| 9:00 AM | 2:30 PM | 11:00 AM |
| 10:00 AM | 3:30 PM | 12:00 PM |
| 11:00 AM | 4:30 PM | 1:00 PM |
| 12:00 PM | 5:30 PM | 2:00 PM |
| 1:00 PM | 6:30 PM | 3:00 PM |
| 2:00 PM | 7:30 PM | 4:00 PM |
| 3:00 PM | 8:30 PM | 5:00 PM |
| 4:00 PM | 9:30 PM | 6:00 PM |
| 5:00 PM | 10:30 PM | 7:00 PM |
| 6:00 PM | 11:30 PM | 8:00 PM |
| ← Date changes in Tokyo → | ||
| 7:00 PM | 12:30 AM +1 | 9:00 PM |
| 8:00 PM | 1:30 AM +1 | 10:00 PM |
| 9:00 PM | 2:30 AM +1 | 11:00 PM |
| 10:00 PM | 3:30 AM +1 | 12:00 AM |
| 11:00 PM | 4:30 AM +1 | 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) & 600 Cities in Tokyo (GMT+9) — Page 1 of 3
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
Tokyo & 599 more — Tokyo (GMT+9, UTC+9)
- Tokyo, JP 37.8M
- Seoul, KR 23.0M
- Osaka, JP 15.1M
- Nagoya, JP 9.2M
- Yokohama, JP 3.8M
- Busan, KR 3.5M
- Incheon, KR 2.9M
- Pyongyang, KP 2.9M
- Daegu, KR 2.4M
- Fukuoka, JP 2.3M
- Sapporo, JP 2.0M
- Kawasaki, JP 1.5M
- Kobe, JP 1.5M
- Gwangju, KR 1.5M
- Daejeon, KR 1.5M
Kyoto, JPSaitama, JPSuwon, KRHiroshima, JPUlsan, KRTongjin, KRGoyang, KRSendai, JPChangwon, KRChiba, JPHwasu-dong, KRSetagaya, JPKitakyushu, JPSongnam, KRCheongju, KRSakai, JPNiigata, JPHamamatsu, JPBucheon, KRHamhung, KPNerima, JPOta-ku, JPKumamoto, JPYanggok, KRSagamihara, JPOkayama, JPNampo, KPEdogawa, JPShizuoka, JPAdachi, JPCh'ongjin, KPCh'onan, KRHoncho, JPAnsan, KRKawaguchi, JPKagoshima, JPItabashi, JPSuginami-ku, JPHachioji, JPKimhae, KRHimeji, JPKoto-ku, JPUtsunomiya, JPMatsuyama, JPPohang, KRMatsudo, JPIchikawa, JPHigashi-osaka, JPNishinomiya-hama, JPKawachicho, JPKurashiki, JPOita, JPKanazawa, JPFukuyama, JPPyeongtaek, KRAmagasaki, JPKatsushika-ku, JPFujisawa, JPSunch'on, KPJeju, KRMachida, JPKashiwa, JPAomori, JPSihung, KRToyota, JPUijeongbu, KRTakamatsu, JPShinagawa-ku, JPPaju, KRJayapura, IDToyama, JPKumi, KRNagasaki, JPGifu, JPToyonaka, JPMiyazaki, JPHirakata, JPOkazaki, JPMinamisuita, JPIchinomiya, JPTakasaki, JPAmbon, IDToyohashi, JPNagano, JPWonsan, KPKawagoe, JPWakayama, JPKita-ku, JPGimpo, KRNara, JPSinuiju, KPShinjuku, JPTakatsuki, JPTanch'on, KPNakano, JPOtsu, JPKoshigaya, JPJeonju, KRTokorozawa, JPChinju, KRIwaki, JPChita, RUAsan, KRMaebashi, JPAsahikawa, JPWonju, KRKoriyama, JPKochi, JPKaech'on, KPGwangmyeongni, KRNaha, JPYakutsk, RUYokkaichi, JPSariwon, KPKasugai, JPAkita, JPKurume, JPOakashicho, JPToshima, JPYangsan, KRSorong, IDMorioka, JPMeguro, JPFukushima, JPIbaraki, JPChuncheon, KRGyeongsan, KRKunsan, KRYeosu, KRTsu, JPSumida, JPIksan, KRMito, JPKunp'o, KRIchihara, JPNagaoka, JPSuncheon, KRYao, JPFukui, JPFuchu, JPMinato, JPHiratsuka, JPKakogawacho-honmachi, JPTokushima, JPShinozaki, JPKanggye, KPHakodate, JPSoka, JPKyongju, KRYamagata, JPTsukuba-kenkyugakuen-toshi, JPFuji, JPSasebo, JPChigasaki, JPHaeju, KPAnju, KPBunkyo-ku, JPYato, JPMatsumoto, JPChofugaoka, JPP'yongsong-si, KPShibuya-ku, JPAnyang, KRSaga, JPYoshiicho-shimobaru, JPKasukabe, JPNeya, JPAgeoshimo, JPOta, JPAtsugicho, JPHachinohe, JPDili, TLTakarazuka, JPArakawa, JPMokpo, KROsan, KRIsesaki, JPKure, JPNagareyama, JPTaito, JPGangneung, KRIch'on, KRChungju, KRNishitokyo, JPTernate, ID