Tehran
Iran
--:-- --
GMT+3:30 · UTC+3:30
8 hours 30 minutes difference
Auckland
New Zealand
--:-- --
GMT+13 · UTC+12

24-Hour Overlap Timeline

❌ No business-hours overlap between Tehran and Auckland (9–18 local)

⚠ Auckland observes daylight saving time — offset may vary by up to 1 hour seasonally

01234567891011121314151617181920212223
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
🇳🇿 Auckland UTC+12 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p 12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a
Both working Working Off hours Sleeping Now

Key Facts: Tehran (GMT+3:30) vs Auckland (GMT+13)

Time Gap
8h 30m
Auckland ahead
May vary ±1h (DST)
DST Status
✅ Tehran
No DST
⏰ Auckland: Observes DST
Cities in GMT+3:30
163
Largest: Tehran
14,148,000 pop.
Overlap Window
1h window
9:00 AM – 10:00 AM (GMT+3:30)
5:00 PM – 6:00 PM (GMT+13)

Find Cities in Tehran & Auckland Timezones

Check if your cities are on this page

The GMT+3:30 and GMT+13 timezones are separated by 8 hours 30 minutes. Tehran is the largest city in the Asia/Tehran zone and Auckland is the largest in Pacific/Auckland. Auckland observes daylight saving time — the difference may change by 1 hour seasonally. For scheduling between these regions, the key fact is: there are only 1 hour of mutual business-hours overlap.

Best Times to Schedule Calls: Tehran (GMT+3:30) ↔ Auckland (GMT+13)

Tehran (GMT+3:30) Auckland (GMT+13) Quality
12:00 AM 8:00 AM
1:00 AM 9:00 AM
2:00 AM 10:00 AM
3:00 AM 11:00 AM
4:00 AM 12:00 PM
5:00 AM 1:00 PM
6:00 AM 2:00 PM
7:00 AM 3:00 PM ⚠️
8:00 AM 4:00 PM ⚠️
9:00 AM 5:00 PM
10:00 AM 6:00 PM ⚠️
11:00 AM 7:00 PM ⚠️
12:00 PM 8:00 PM
1:00 PM 9:00 PM
2:00 PM 10:00 PM
3:00 PM 11:00 PM
4:00 PM 12:00 AM +1 day
5:00 PM 1:00 AM +1 day
6:00 PM 2:00 AM +1 day
7:00 PM 3:00 AM +1 day
8:00 PM 4:00 AM +1 day
9:00 PM 5:00 AM +1 day
10:00 PM 6:00 AM +1 day
11:00 PM 7:00 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+13: Complete 24-Hour Time Conversion Table

Tehran (GMT+3:30) Auckland (GMT+13) IST (UTC+5:30)
12:00 AM 8:30 AM 2:00 AM
1:00 AM 9:30 AM 3:00 AM
2:00 AM 10:30 AM 4:00 AM
3:00 AM 11:30 AM 5:00 AM
4:00 AM 12:30 PM 6:00 AM
5:00 AM 1:30 PM 7:00 AM
6:00 AM 2:30 PM 8:00 AM
7:00 AM 3:30 PM 9:00 AM
8:00 AM 4:30 PM 10:00 AM
9:00 AM 5:30 PM 11:00 AM
10:00 AM 6:30 PM 12:00 PM
11:00 AM 7:30 PM 1:00 PM
12:00 PM 8:30 PM 2:00 PM
1:00 PM 9:30 PM 3:00 PM
2:00 PM 10:30 PM 4:00 PM
3:00 PM 11:30 PM 5:00 PM
← Date changes in Auckland →
4:00 PM 12:30 AM +1 6:00 PM
5:00 PM 1:30 AM +1 7:00 PM
6:00 PM 2:30 AM +1 8:00 PM
7:00 PM 3:30 AM +1 9:00 PM
8:00 PM 4:30 AM +1 10:00 PM
9:00 PM 5:30 AM +1 11:00 PM
10:00 PM 6:30 AM +1 12:00 AM
11:00 PM 7:30 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) & 13 Cities in Auckland (GMT+13)

Tehran & 162 more — Tehran (GMT+3:30, UTC+3:30)

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

Auckland & 12 more — Auckland (GMT+13, UTC+12)

⚠️ Daylight Saving Time Affects This Pair

TimezoneDST?StandardDaylight
Asia/Tehran No UTC+3:30
Pacific/Auckland Yes UTC+12 UTC+13

During DST periods the time difference between these zones may be 9 hours 30 minutes instead of 8 hours 30 minutes. Always verify the current offset if scheduling calls near clock-change dates.