The short answer
Central Daylight Time is 8 hours 30 minutes behind Tehran.
Central Daylight Time☾
8:02:36pm
CDT · UTC-05:00 · Thu, Sep 24
Tehran☾
4:32:36am
+03:30 · UTC+03:30 · Fri, Sep 25
Read across to convert
Central Daylight Time
CDT · UTC-05:00
Tehran
+03:30 · UTC+03:30
Click any row to pin that hour across both zones.
12amThu
8:30am
1am
9:30am
WORK2am
10:30am
WORK3am
11:30am
WORK4am
12:30pm
WORK5am
1:30pm
WORK6am
2:30pm
WORK7am
3:30pm
WORK8am
4:30pm
WORK9am
WORK5:30pm
10am
WORK6:30pm
11am
WORK7:30pm
12pm
WORK8:30pm
1pm
WORK9:30pm
2pm
WORK10:30pm
3pm
WORK11:30pm
4pm
WORK12:30amFri ·+1d
5pm
1:30amFri ·+1d
6pm
2:30amFri ·+1d
7pm
3:30amFri ·+1d
NOW
8pm
4:30amFri ·+1d
9pm
5:30amFri ·+1d
10pm
6:30amFri ·+1d
11pm
7:30amFri ·+1d
daylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Central Daylight Time
7am–11am
Tehran
3:30pm–7:30pm
Popular conversions
Quick reference.
9amCentral Daylight Time=5:30pmTehran
12pmCentral Daylight Time=8:30pmTehran
3pmCentral Daylight Time=11:30pmTehran
5pmCentral Daylight Time=1:30amTehran · next day
9pmCentral Daylight Time=5:30amTehran · next day
In context
What each side covers.
Central Daylight Time
8:02pmCDT · UTC-05:00
Cities on this clock
Did you mean…? “CDT” is shared by several places. This page shows Central Daylight Time (US & Canada) — or switch to China Standard Time · Cuba Daylight Time.
Related converters
Other popular pairs.
Pacific Time
6:02pm
India Standard Time
6:32am
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
9:02pm
Central European Time
3:02am
Eastern Time to Central Europe6 hours behind
India Standard Time
6:32am
Eastern Daylight Time
9:02pm
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
2:02am
India Standard Time
6:32am
London to India4 hours 30 minutes behind
Pacific Daylight Time
6:02pm
Eastern Daylight Time
9:02pm
Pacific to Eastern Time3 hours behind
Central European Time
3:02am
India Standard Time
6:32am
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Central Daylight Time and Tehran. Can't find what you need? Email [email protected].
- What is the time difference between Central Daylight Time and Tehran?
- Central Daylight Time is 8 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 9am in Central Daylight Time, what time is it in Tehran?
- 9am in Central Daylight Time is 5:30pm in Tehran. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
- What's the best time for a call between Central Daylight Time and Tehran?
- There's no comfortable 9-to-5 overlap between Central Daylight 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 — CDT 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.