Yokohama vs Sydney Time Difference

Yokohama to Sydney time chart, hour by hour

Yokohama	Sydney
00:00	02:00
01:00	03:00
02:00	04:00
03:00	05:00
04:00	06:00
05:00	07:00
06:00	08:00
07:00	09:00
08:00	10:00
09:00	11:00
10:00	12:00
11:00	13:00
12:00	14:00
13:00	15:00
14:00	16:00
15:00	17:00
16:00	18:00
17:00	19:00
18:00	20:00
19:00	21:00
20:00	22:00
21:00	23:00
22:00	00:00 +1 day
23:00	01:00 +1 day

Highlighted rows fall within 09:00–18:00 in both places: 7 shared working hours.

Clock changes in Yokohama and Sydney

Yokohama

Japan Standard Time (JST)

No daylight saving time.

Sydney

Australian Eastern Daylight Time (AEDT)

Next clock change Sun 4 Apr 2027 (UTC+11 → UTC+10)

Time difference between Yokohama and Sydney today

Today Sydney is 2 hours ahead of Yokohama. When it is 09:00 in Yokohama, it is 11:00 in Sydney. Yokohama is on Japan Standard Time (JST); Sydney is on Australian Eastern Daylight Time (AEDT).

When the Yokohama to Sydney time difference changes

For most of the year Sydney is 2 hours ahead of Yokohama. From 4 April to 2 October 2027, Sydney is 1 hour ahead of Yokohama instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.

Dates	Sydney vs Yokohama	Length
4 October 2026 to 31 December 2026	2 hours ahead	89 days
1 January 2027 to 3 April 2027	2 hours ahead	93 days
4 April 2027 to 2 October 2027	1 hour ahead	182 days
3 October 2027 to 31 December 2027	2 hours ahead	90 days

Calling hours for Yokohama and Sydney

When Sydney is 2 hours ahead of Yokohama: 6 shared office hours, 09:00 to 15:00 in Yokohama (11:00 to 17:00 in Sydney).
When Sydney is 1 hour ahead of Yokohama: 7 shared office hours, 09:00 to 16:00 in Yokohama (10:00 to 17:00 in Sydney).

Yokohama vs Sydney: Current time difference

On 15 January 2026, Yokohama is 2 hours ahead of Sydney. 09:00 in Yokohama is 07:00 in Sydney.

That is only true for part of the year.

JST vs AEST/AEDT: How the gap changes

Japan does not observe daylight saving. Yokohama stays on UTC+9 year-round. Sydney shifts twice a year.

During AEST (Australian Eastern Standard Time): early April to early October. Yokohama is 1 hour behind Sydney. 09:00 in Yokohama = 10:00 in Sydney.
During AEDT (Australian Eastern Daylight Time): early October to early April. Sydney moves to UTC+11. Yokohama is 2 hours behind Sydney. 09:00 in Yokohama = 11:00 in Sydney.

The difference flips by a full hour. Mark your calendar for the first Sunday in October and the first Sunday in April. Those are the changeover days.

When should I schedule a Yokohama, Sydney call?

Book the call for 10:00 Sydney time. That puts it at 08:00 Yokohama during AEDT and 09:00 Yokohama during AEST. Both land inside standard business hours.

The reliable window for both sides is the Australian morning and Japanese late morning to early afternoon.

During AEDT (October, April): overlap window ~09:00-15:00 Sydney = 07:00-13:00 JST. A 10:00 Sydney meeting is 08:00 in Yokohama.
During AEST (April, October): overlap window ~09:00-15:00 Sydney = 08:00-14:00 JST. A 10:00 Sydney meeting is 09:00 in Yokohama.

Skip evening calls. A 18:00 Sydney start during AEDT is 16:00 in Yokohama. That is doable. But during AEST, 18:00 Sydney is 17:00 Yokohama. Tight. Anything later pushes one side past business hours.

Travel time and jet lag tips

Sydney to Yokohama is a 9-10 hour direct flight. The time difference is small by long-haul standards. The direction matters.

Flying from Sydney to Yokohama: you lose 1-2 hours depending on the season. You arrive the same calendar day. Jet lag is usually mild. Get sunlight in the morning after arrival.
Flying from Yokohama to Sydney: you gain 1-2 hours. The flight is long but the clock shift is small. Most travellers adjust within a day.

January in Sydney is summer (AEDT). July in Sydney is winter (AEST). Do not assume the same time difference applies in both months. Check the date.

What is the Yokohama, Sydney time difference in July?

On 15 July 2026, Yokohama is 1 hour ahead of Sydney. Sydney is on AEST (UTC+10). Yokohama is on JST (UTC+9). 09:00 in Yokohama is 10:00 in Sydney.

This is the smaller gap. Use it for morning calls from Sydney. 08:00 Sydney is 09:00 Yokohama. Both sides are fresh.

What is the Yokohama, Sydney time difference in January?

On 15 January 2026, Yokohama is 2 hours ahead of Sydney. Sydney is on AEDT (UTC+11). Yokohama is on JST (UTC+9). 09:00 in Yokohama is 07:00 in Sydney.

This is the wider gap. A 09:00 Sydney start is 07:00 Yokohama. That is early. Push Sydney meetings to 10:00 or later unless the Yokohama side agrees to an early start.

Next steps for Yokohama, Sydney scheduling

Use the time zone converters to check the exact difference on your specific date. For a recurring meeting, lock in 10:00 Sydney time and confirm the JST equivalent for the current month. If you are travelling, the jet lag guide has practical tips for both directions.

Frequently asked questions about Yokohama and Sydney time

What time is it in Sydney when it is 9:00 AM in Yokohama?

11:00 today; Sydney is 2 hours ahead of Yokohama.

Does the time difference between Yokohama and Sydney change?

Yes. It is usually 2 hours ahead, but changes when one side moves its clocks: 1 hour ahead from 4 April to 2 October 2027.