Sydney time to Tehran time
Tehran is 7.5 hours behind Sydney in January and 6.5 hours behind in July (Sydney GMT+10/UTC+10:00 in summer; Tehran GMT+3:30/UTC+03:30). Enter a Sydney time below to convert it, or leave it blank to see the current time in both cities.
How to use the Sydney to Tehran time
- Type a Sydney time (24-hour) and optionally a date, or leave blank for now.
- Click Convert.
- Read the Tehran time and the working-hours table.
Time difference between Sydney and Tehran
Tehran is 7.5 hours behind Sydney in January and 6.5 hours behind in July. Sydney observes daylight saving time and Tehran does not, so the difference changes twice a year. Sydney uses Australia/Sydney time (UTC+11:00 in January, UTC+10:00 in July); Tehran uses Asia/Tehran (UTC+03:30 in January, UTC+03:30 in July).
Working week in Sydney and Tehran
Sydney: Australian Eastern Time: AEDT (UTC+11) from the first Sunday of October to the first Sunday of April, otherwise AEST (UTC+10). Office hours 09:00–17:00, weekend Saturday–Sunday.
Tehran: Iran Standard Time, UTC+3:30 all year (daylight saving was abolished in 2022). Weekend is Friday, with Thursday a half day for many; the week starts Saturday.
Quick conversion table (summer difference)
| Sydney | Tehran |
|---|---|
| 08:00 | 01:30 |
| 09:00 | 02:30 |
| 10:00 | 03:30 |
| 12:00 | 05:30 |
| 14:00 | 07:30 |
| 16:00 | 09:30 |
| 18:00 | 11:30 |
| 20:00 | 13:30 |
| 22:00 | 15:30 |
Table uses the July difference; the tool above applies the exact rule for any date.
Best time to call between Sydney and Tehran
Within normal office hours (09:00–18:00) in both cities: 16:00–17:00 Sydney time. For a compromise outside that window, the fairest slots are the ones nearest each side's start or end of day, alternating who takes the inconvenient hour.
Reverse
Need the other direction? See Tehran to Sydney, or the general time zone converter.
Frequently asked questions
How many hours ahead is Tehran from Sydney?
Tehran is 7.5 hours behind Sydney in January and 6.5 hours behind in July.
When it is 12:00 noon in Sydney, what time is it in Tehran?
05:30 in summer (the same or previous day); use the tool for a specific date.
Does the converter handle daylight saving?
Yes, for the exact date you enter, using the IANA time-zone rules in your browser.
Privacy
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Last updated 2026-09-23.