Time Difference

Tehran vs Johannesburg Time Difference

Compare the current local time in Tehran, Iran and Johannesburg, South Africa.

Live local timeDST awareUTC offsets

From

Tehran

Iran

3:08 AM

Mon, Aug 17

UTC+3:30Asia/Tehran

Difference

1h 30m

Swap

Johannesburg

South Africa

1:38 AM

Mon, Aug 17

UTC+2Africa/Johannesburg

Current difference

Johannesburg is currently 1 hour 30 minutes behind Tehran.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Tehran and Johannesburg hour by hour

See how a full local day in Tehran, Iran maps to Johannesburg, South Africa. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

11:00 AM – 6:00 PM in Tehran

corresponds to 9:30 AM – 4:30 PM in Johannesburg.

7 hours overlap

Tehran

Asia/Tehran

Johannesburg

Africa/Johannesburg

Availability

12:00 AM

Mon, Aug 17

10:30 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

11:30 PM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

12:30 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

1:30 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

2:30 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

3:30 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

4:30 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

5:30 AM

Mon, Aug 17

Night

8:00 AM

Mon, Aug 17

6:30 AM

Mon, Aug 17

Night

9:00 AM

Mon, Aug 17

7:30 AM

Mon, Aug 17

Possible

10:00 AM

Mon, Aug 17

8:30 AM

Mon, Aug 17

Possible

11:00 AM

Mon, Aug 17

9:30 AM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

10:30 AM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

11:30 AM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

12:30 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

1:30 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

2:30 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

3:30 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

4:30 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

5:30 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

6:30 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

7:30 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

8:30 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

9:30 PM

Mon, Aug 17

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Johannesburg from Tehran

Compare typical business hours in Tehran, Iran and Johannesburg, South Africa to find a practical time for calls, meetings or international coordination.

Tehran

11:00 AM – 6:00 PM

Iran

Best overlap

Johannesburg

9:30 AM – 4:30 PM

South Africa

The best time to call Johannesburg from Tehran is between 11:00 AM and 6:00 PM in Tehran. This corresponds to 9:30 AM – 4:30 PM in Johannesburg.

Other reasonable windows

Tehran

9:00 AM – 11:00 AM

Johannesburg

7:30 AM – 9:30 AM

Tehran

6:00 PM – 9:00 PM

Johannesburg

4:30 PM – 7:30 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Tehran and Johannesburg time difference explained

Current local-time relationship

Johannesburg is currently 1 hour and 30 minutes behind Tehran.

Tehran uses Asia/Tehran and currently has an offset of UTC+3:30. Johannesburg uses Africa/Johannesburg and currently has an offset of UTC+2.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 10:30 AM to 6:00 PM in Tehran, corresponding to 9:00 AM–4:30 PM in Johannesburg.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Tehran and Johannesburg.

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Local clocks

Explore each city

Current time in Tehran Current time in Johannesburg

FAQ

Tehran to Johannesburg time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Tehran and Johannesburg.

What is the time difference between Tehran and Johannesburg?

The current time difference between Tehran and Johannesburg is 1h 30m. Johannesburg is currently 1 hour and 30 minutes behind Tehran.

Is Johannesburg ahead of or behind Tehran?

Johannesburg is currently 1 hour and 30 minutes behind Tehran.

What time is it in Johannesburg when it is 9:00 AM in Tehran?

Using the current UTC offsets, 9:00 AM in Tehran corresponds to 7:30 AM in Johannesburg. The exact difference can change when daylight-saving rules change.

What is the best time to call Johannesburg from Tehran?

Typical 9:00 AM–6:00 PM business hours overlap between 10:30 AM and 6:00 PM in Tehran. This corresponds to 9:00 AM–4:30 PM in Johannesburg.

Can the time difference between Tehran and Johannesburg change?

Yes. The time difference can change if Tehran or Johannesburg changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Asia/Tehran and Africa/Johannesburg for date-aware calculations.