What is the time difference between Tokyo and Johannesburg?

Johannesburg is 7 hours behind Tokyo. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Johannesburg from Tokyo?

Between 16:00–18:00 in Tokyo, which is 09:00–11:00 in Johannesburg. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Tokyo observe daylight saving time?

No. Tokyo stays on UTC+9 all year, so its clocks never move.

Does Johannesburg observe daylight saving time?

No. Johannesburg stays on UTC+2 all year, so its clocks never move.

If it is midday in Tokyo, what time is it in Johannesburg?

It is 05:00 in Johannesburg, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Tokyo and Johannesburg use?

Tokyo uses Asia/Tokyo, currently UTC+9, and Johannesburg uses Africa/Johannesburg, currently UTC+2. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Tokyo time to Johannesburg time

Johannesburg is 7 hours behind Tokyo right now, so midday in Tokyo lands in the small hours in Johannesburg.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Tokyo, across for Johannesburg.

Tokyo	Johannesburg
00:00	17:00previous day
01:00	18:00previous day
02:00	19:00previous day
03:00	20:00previous day
04:00	21:00previous day
05:00	22:00previous day
06:00	23:00previous day
07:00	00:00
08:00	01:00
09:00	02:00
10:00	03:00
11:00	04:00
12:00	05:00
13:00	06:00
14:00	07:00
15:00	08:00
16:00	09:00
17:00	10:00
18:00	11:00
19:00	12:00
20:00	13:00
21:00	14:00
22:00	15:00
23:00	16:00

Daylight saving time

Both cities keep one offset all year. Whatever difference holds today still holds in six months.

Tokyo

Does not observe daylight saving time

Standard: UTC+9

Johannesburg

Does not observe daylight saving time

Standard: UTC+2

When you can actually talk

You have 2 hours of shared working time: 16:00–18:00 in Tokyo, which is 09:00–11:00 in Johannesburg.

Tokyo 16:00–18:00Johannesburg 09:00–11:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Tokyo	Johannesburg
IANA zone	Asia/Tokyo	Africa/Johannesburg
Abbreviation	UTC+9	UTC+2
Standard offset	UTC+9	UTC+2
Daylight offset	—	—
Clock changes this year	0	0
Country	Japan	South Africa

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Tokyo and Johannesburg?: Johannesburg is 7 hours behind Tokyo. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Johannesburg from Tokyo?: Between 16:00–18:00 in Tokyo, which is 09:00–11:00 in Johannesburg. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
Does Johannesburg observe daylight saving time?: No. Johannesburg stays on UTC+2 all year, so its clocks never move.
If it is midday in Tokyo, what time is it in Johannesburg?: It is 05:00 in Johannesburg, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Tokyo and Johannesburg use?: Tokyo uses Asia/Tokyo, currently UTC+9, and Johannesburg uses Africa/Johannesburg, currently UTC+2. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.