Tehran
Iran Standard Time
--:--
Adelaide
Australian Central Standard Time
--:--
The exact hour gap shifts with DST — dial it in below.
9AM IRST → ACST · DST-aware · Shareable9AM IRST → ACST · DST-aware
9AM IRST to ACST
translated & shareable.
Iran Standard Time (Tehran) and Australian Central Standard Time (Adelaide). This page opens with 9AM IRST preset—shift the calendar, compare tables, and copy a link your team can reopen anytime.
1
Check live clocks
See current time in Tehran (IRST) and Adelaide (ACST) with active DST rules before you dial in the deadline date.
2
Set the deadline
The workspace opens with 9AM IRST preset—pick the actual calendar date, read day-shift warnings, and business-hours badges in Adelaide.
3
Share or explore
Copy a shareable URL, scan the 24-hour table below, or jump to related deadline routes for the same zone pair.
Searching "9am IRST to ACST"? When a colleague says "9am IRST" they mean 9am in Iran Standard Time (Tehran). In Australian Central Standard Time (Adelaide) that's approximately 4 PM ACST on the same day.
Tehran is currently 7 hours behind Adelaide. Because Daylight Saving Time affects this pair, the exact converted time may shift by an hour during DST transition windows — the converter below accounts for the deadline date you choose. For other times between these zones see the 24-hour table further down, or jump to the full IRST → ACST converter. Open the full IRST → ACST converter.
Deadline workspace
Set the source, use the answer.
Live conversion
1
Source deadline
time and date the client gave you
2
Timezone route
Swap the direction any time if you are checking from your side.
Your local deadline
15:00
GMT+9:30 · 2026-06-23 · Tue
Source
09:00
GMT+3:30
Countdown
Deadline passed
Planning status
Business hours
Business hoursTue
Google CalendarHour-by-hour map
24-hour reference: IRST → ACST
Every civil hour today from Tehran (IRST) translated into Adelaide (ACST). Compare any slot to your preset (9AM IRST); day badges mark midnight crossings and times follow your browser’s IANA database.
IRSTACST
Hourly wall-clock map for today — midnight crossings show as day shifts.
IRST with part-of-day icon
ACST arrow and converted time
Day
- 00:0006:00Same day
- 01:0007:00Same day
- 02:0008:00Same day
- 03:0009:00Same day
- 04:0010:00Same day
- 05:0011:00Same day
- 06:0012:00Same day
- 07:0013:00Same day
- 08:0014:00Same day
- 09:0015:00Same day
- 10:0016:00Same day
- 11:0017:00Same day
- 12:0018:00Same day
- 13:0019:00Same day
- 14:0020:00Same day
- 15:0021:00Same day
- 16:0022:00Same day
- 17:0023:00Same day
- 18:0000:00Next day
- 19:0001:00Next day
- 20:0002:00Next day
- 21:0003:00Next day
- 22:0004:00Next day
- 23:0005:00Next day
Uses your browser's IANA zone data — choose another date in the converter for historical or future days.
Preset shortcuts
Common deadlines
Five typical office times (morning through early evening) as a quick sanity check. Dial exact dates and share links in the deadline workspace above.
IRSTACST
Shortcut rows for typical meeting hours — see the full 24-hour grid above.
IRST with part-of-day icon
ACST arrow and converted time
Day
- 09:0015:00Same day
- 12:0018:00Same day
- 15:0021:00Same day
- 17:0023:00Same day
- 18:0000:00Next day
Uses your browser's IANA zone data — choose another date in the converter for historical or future days.
FAQ
9AM IRST to ACST
DST behaviour, sharing preset deadlines, and how to read business-hours badges in the target city.
See the live converter above — it calculates the exact ACST time corresponding to 9am IRST, including any day shift and DST effects.
Keep exploring
Related hubs & shortcuts
Other preset times for this pair, nearby deadline routes, city clocks, meeting overlap, and index pages—picked for this route so you can move on without searching.