The short answer
8pm in Hawaii Time is 9:30am in Tehran on the next day.
Hawaii Time is 13 hours 30 minutes behind Tehran. It falls outside the 9-to-5 in Hawaii Time but lands inside working hours in Tehran.
Hawaii Time☾
8pm
Tehran☀
9:30am
next day
Right now
2:15amHST · UTC-10:00 · Mon, Jun 22
3:45pm+03:30 · UTC+03:30 · Mon, Jun 22
Read across to convert
Hawaii Time
HST · UTC-10:00
Tehran
+03:30 · UTC+03:30
Pinned8pmHawaii Time=9:30amTehran · Tue (next day)
12amMon
1:30pm
WORK1am
2:30pm
WORKNOW
2am
3:30pm
WORK3am
4:30pm
WORK4am
5:30pm
5am
6:30pm
6am
7:30pm
7am
8:30pm
8am
9:30pm
9am
WORK10:30pm
10am
WORK11:30pm
11am
WORK12:30amTue ·+1d
12pm
WORK1:30amTue ·+1d
1pm
WORK2:30amTue ·+1d
2pm
WORK3:30amTue ·+1d
3pm
WORK4:30amTue ·+1d
4pm
WORK5:30amTue ·+1d
5pm
6:30amTue ·+1d
6pm
7:30amTue ·+1d
7pm
8:30amTue ·+1d
PINNED
8pm
9:30amTue ·+1d
WORK9pm
10:30amTue ·+1d
WORK10pm
11:30amTue ·+1d
WORK11pm
12:30pmTue ·+1d
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Hawaii Time
6pm–7pm
Tehran
7:30am–8:30am
next day
Popular conversions
Quick reference.
9amHawaii Time=10:30pmTehran
12pmHawaii Time=1:30amTehran · next day
3pmHawaii Time=4:30amTehran · next day
5pmHawaii Time=6:30amTehran · next day
9pmHawaii Time=10:30amTehran · next day
In context
What each side covers.
Related converters
Other popular pairs.
Pacific Time
5:15am
India Standard Time
5:45pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
8:15am
Central European Time
2:15pm
Eastern Time to Central Europe6 hours behind
India Standard Time
5:45pm
Eastern Standard Time
8:15am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
1:15pm
India Standard Time
5:45pm
London to India4 hours 30 minutes behind
Pacific Standard Time
5:15am
Eastern Standard Time
8:15am
Pacific to Eastern Time3 hours behind
Central European Time
2:15pm
India Standard Time
5:45pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Hawaii Time and Tehran. Can't find what you need? Email [email protected].
- What is the time difference between Hawaii Time and Tehran?
- Hawaii Time is 13 hours 30 minutes behind Tehran right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 8pm in Hawaii Time, what time is it in Tehran?
- 8pm in Hawaii Time is 9:30am in Tehran on the next day. It falls outside the 9-to-5 in Hawaii Time but lands inside working hours in Tehran. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between Hawaii Time and Tehran?
- There's no comfortable 9-to-5 overlap between Hawaii Time and Tehran — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — HST and +03:30 — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.