Convert AEST to JST
See the 1-hour time difference between AEST and JST, compare hours side by side, and schedule meetings with calendar export tools.
How AEST to JST Works
AEST is UTC+10 and JST is UTC+9, so JST is 1 hour behind AEST. Enter any time to convert it instantly between Australian Eastern Standard Time and Japan Standard Time.
Hour-by-Hour Time Table
Use the visual grid and hour-by-hour table to compare AEST and JST across the day. Check overlapping business hours, then export selected times as ICS or open them in Google Calendar or Gmail.
Schedule Meetings Accurately
Plan calls between AEST and JST with automatic timezone adjustment and DST tracking where applicable. Conversion data follows the IANA timezone database for current and historical accuracy.
How to Convert AEST to JST
Open the AEST to JST converter: Visit https://www.xconvert.com/time-converter/aest-to-jst-converter to load a visual comparison grid with AEST and JST ready for side-by-side viewing. This page is useful when you are scheduling a supplier call between Australia and Japan, planning a Tokyo business trip from Sydney, or coordinating support coverage across teams working in Australian Eastern Standard Time and Japan Standard Time.
Add comparison cities if your schedule involves more regions: Click + Add City and search for cities that commonly connect with Australia and Japan, such as Tokyo, Sydney, or Brisbane, depending on which local market your team actually works from. This is especially practical for manufacturing, logistics, automotive, gaming, and regional APAC operations where Australian and Japanese offices often need to align with local office hours before confirming calls or handoffs.
Select a working time range on the grid: Click Select to enter selection mode, then drag across the colored timeline to highlight a meeting window in purple; you can move it by dragging the center or fine-tune it with the left and right handles. For example, selecting 9:00 AEST to 12:00 AEST shows 8:00 JST to 11:00 JST, while 15:00 AEST to 18:00 AEST shows 14:00 JST to 17:00 JST, making it easy to confirm whether a morning planning session in Australia still lands inside normal business hours in Japan.
Export and share the selected time: After highlighting a range, use the export options to send the schedule as an ICS download, open it in Google Calendar, draft it in Gmail, Copy to clipboard, or create a Share link. This is useful for sending a confirmed meeting slot to a Tokyo client, sharing a recurring operations window with an Australia-based team, or distributing a calendar file so everyone sees the event in their own local time automatically.
Understanding the AEST to JST Time Difference
AEST is Australian Eastern Standard Time (UTC+10) and JST is Japan Standard Time (UTC+9). AEST is 1 hour ahead of JST, which means JST is -1 hours behind AEST. In practical terms, when it is 9:00 AEST, it is 8:00 JST, and when it is 18:00 AEST, it is 17:00 JST.
This small one-hour gap makes Australia–Japan coordination easier than many other international schedules in the Asia-Pacific region. The conversion pattern stays simple throughout standard time: 12:00 AEST = 11:00 JST and 15:00 AEST = 14:00 JST, so midday and afternoon meetings usually remain within the same calendar day for both sides.
Daylight saving time is the main seasonal factor to watch. AEST is a standard-time abbreviation, and its DST counterpart is AEDT, while JST does not observe DST. That means the AEST-to-JST difference applies during the part of the year when eastern Australia is on standard time, and the relationship changes in the months when parts of Australia switch to AEDT, so seasonal meeting schedules should be reviewed carefully during DST periods.
Best Times for Calls and Meetings Between AEST and JST
Because AEST is only 1 hour ahead of JST, most normal office-hour meetings translate cleanly between eastern Australia and Japan. A 9:00 AEST start becomes 8:00 JST, which can work for early business discussions, daily check-ins, and logistics coordination if the Japan side starts early. A 12:00 AEST meeting becomes 11:00 JST, which is often a strong option for project reviews, vendor updates, and cross-border planning calls.
Afternoon scheduling is also straightforward. 15:00 AEST = 14:00 JST, which fits well for product meetings, account management calls, and regional operations reviews, while 18:00 AEST = 17:00 JST can still work for end-of-day coordination before Japanese teams finish business hours. This makes late afternoon in eastern Australia particularly useful for same-day collaboration with Japan without pushing either side too far outside a standard workday.
For recurring meetings, the most practical overlap is usually the broad daytime block shown by the examples: 9:00 AEST to 18:00 AEST corresponds to 8:00 JST to 17:00 JST. That window is useful for industries with regular Australia–Japan contact, including trade, shipping, tourism, technology partnerships, education, and regional headquarters coordination. If your team schedules recurring calls across seasons, review the timing again when eastern Australia moves from AEST to AEDT, because Japan remains on JST all year.
Frequently Asked Questions
What is the time difference between AEST and JST?
AEST is UTC+10 and JST is UTC+9, so AEST is 1 hour ahead of JST. Another way to say it is that JST is -1 hours behind AEST. This means a meeting scheduled in eastern Australia during AEST will appear one hour earlier in Japan.
When is 9 AM AEST in JST?
9:00 AEST = 8:00 JST. This is a useful conversion for morning standups, supplier check-ins, and travel planning because both times still fall within the same business morning in the Australia–Japan corridor.
When is 12 PM AEST in JST?
12:00 AEST = 11:00 JST. This is often a convenient slot for cross-border meetings because it lands near midday in both schedules, making it practical for project reviews, client calls, and regional coordination.
When is 3 PM AEST in JST?
15:00 AEST = 14:00 JST. This works well for afternoon meetings, especially for teams that need time earlier in the day to prepare documents, review numbers, or complete internal approvals before speaking with counterparts in Japan.
When is 6 PM AEST in JST?
18:00 AEST = 17:00 JST. This can be a strong option for late-day Australia calls that still reach Japan before the end of a typical office day, which is helpful for operations updates, shipping cutoffs, and same-day decision making.
Does the difference between AEST and JST change during DST?
Yes, seasonal changes matter because AEST is a standard-time abbreviation and its DST counterpart is AEDT, while JST does not observe DST. The 1-hour AEST-to-JST difference applies during AEST, but the relationship changes during the months when parts of eastern Australia move onto daylight saving time, so recurring meetings should be reviewed before and after that seasonal switch.
Does Japan observe daylight saving time?
No, JST does not observe DST. Japan stays on Japan Standard Time year-round, which makes the Japanese side stable while any seasonal change comes from the Australian side when AEST shifts to AEDT in applicable regions.
What is the best meeting time between AEST and JST?
The best meeting windows are usually during shared daytime hours, and the examples show a very workable overlap. 9:00 AEST = 8:00 JST, 12:00 AEST = 11:00 JST, 15:00 AEST = 14:00 JST, and 18:00 AEST = 17:00 JST, so morning through late afternoon in AEST maps neatly to morning through late afternoon in JST. For most business calls, project syncs, and partner meetings, this makes standard work hours on either side relatively easy to align.
Which countries use AEST and JST?
AEST is used in Australia, and JST is used in Japan. This matters for international scheduling because Australia may shift from AEST to AEDT in some periods, while Japan remains on JST throughout the year.