Time Difference Between Kosai and Sydney
Sydney is 1 hour ahead Kosai.
Japan
Kosai
Asia/Tokyo · UTC+9
Australia
Sydney
Australia/Sydney · UTC+10
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both Kosai and Sydney.
Kosai
9:00 AM
Sydney
10:00 AM
Kosai
10:00 AM
Sydney
11:00 AM
Kosai
11:00 AM
Sydney
12:00 PM
Kosai
12:00 PM
Sydney
1:00 PM
Kosai
1:00 PM
Sydney
2:00 PM
Kosai
2:00 PM
Sydney
3:00 PM
Kosai
3:00 PM
Sydney
4:00 PM
Kosai
4:00 PM
Sydney
5:00 PM
Kosai to Sydney — 24-Hour Conversion
Each row shows the equivalent local time in Sydney for an hour in Kosai. Working-hours rows (9–18) are highlighted.
| Kosai | Sydney | Match |
|---|---|---|
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| Workday in Sydney | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Best for meetings | ||
| Workday in Kosai | ||
| Off hours | ||
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| +1 day | Off hours |
Frequently Asked Questions
What is the time difference between Kosai and Sydney?
Sydney, Australia (UTC+10) is 1 hour ahead Kosai, Japan (UTC+9).
What is the best time to schedule a meeting between Kosai and Sydney?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between Kosai and Sydney?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in Kosai, what time is it in Sydney?
Use the conversion table on this page — every hour in Kosai is mapped to its equivalent local time in Sydney, including day shift markers when the date differs.