Live coverage workflow
Use 00:00 to 02:30 UTC as the shared UTC coverage block, then translate it as 11:00 AM to 01:30 PM GMT+11 for ASX and 09:00 AM to 11:30 AM GMT+9 for JPX Tokyo.
Market overlap
ASX vs JPX Tokyo overlap
Compare the next common trading window between Australian Securities Exchange and Japan Exchange Group, including local times in both markets and the UTC overlap block.
Schedule reviewed Apr 30, 2026. Overlap windows are recalculated from regular-session catalogs and skip tracked full-day exchange closures. Half-days, halts, auctions, and emergency notices can still override a normal session, so confirm time-sensitive trading decisions with the exchange.
Live values rendered at Nov 5, 8:17 PM UTC.
Next common trading day
Fri, Nov 6 / Fri, Nov 6
ASX
11:00 AM to 01:30 PM GMT+11
JPX Tokyo
09:00 AM to 11:30 AM GMT+9
UTC window
00:00 to 02:30 UTC
Overlap minutes
150
Best handoff read
Same-day live overlap
Reference date
Fri, Nov 6 / Fri, Nov 6
ASX and JPX Tokyo share about 2h 30m of regular-session overlap on the next common trading day, which is the cleanest window for live cross-market monitoring.
Workflow examples
Practical ways to use the ASX / JPX Tokyo overlap
The overlap page is for calendar and operations planning. It should help teams schedule monitoring, handoffs, and source checks without drifting into investment advice.
Closure pre-check workflow
Before scheduling a recurring cross-market ritual, check ASX: Christmas Day (Fri, Dec 25, 2026) Then check JPX Tokyo: Labor Thanksgiving Day (Mon, Nov 23, 2026)
Half-day and notice workflow
If the overlap matters for publishing, ops, or compliance timing, check half-day sensitivity first: ASX: Christmas Eve (Thu, Dec 24, 2026, early close 2:10 PM) JPX Tokyo: No modeled half-day appears in the current catalog window.
Overlap pair read
ASX and JPX Tokyo: why this pair is different
The same overlap length can hide important differences. This read exposes the pair-specific clock relationship, session denominator, source boundary, currency split, and whether the common window is deep enough to be useful.
Pair fingerprint
ASX vs JPX Tokyo is a cross-country · different currencies · partial overlap comparison. ASX uses Australia/Sydney; JPX Tokyo uses Asia/Tokyo. The overlap has to be read through two exchange-local clocks, not a fixed UTC offset.
Overlap strength
2h 30m of shared regular-session time equals 45% of the shorter modeled regular-session day. UTC window: 00:00 to 02:30 UTC.
Local-market reading
ASX sees the overlap as 11:00 AM to 01:30 PM GMT+11; JPX Tokyo sees it as 09:00 AM to 11:30 AM GMT+9. This is the important distinction from a generic “markets open now” list.
Session denominator
ASX models 360 regular-session minutes per trading day; JPX Tokyo models 330. The overlap percentage is based on the shorter of those two regular-session totals.
Source boundary
Regular sessions and full-day closures come from ASX cash-market trading hours and JPX domestic trading hours. The page does not model half-days, auctions, lunch-break changes beyond the stored sessions, halts, circuit breakers, or emergency exchange notices.
Currency and venue context
ASX is denominated in AUD; JPX Tokyo is denominated in JPY. This page helps with schedule overlap, not relative value, liquidity, or trade recommendations.
A strong schedule overlap is still not a trading recommendation. It only means the modeled regular sessions share minutes after timezone conversion and tracked full-day closures are skipped.
Calendar watchlist
ASX and JPX Tokyo: closures, half-days, and DST checks
A pair can look similar to another pair if you only compare the overlap minutes. The practical reading depends on whether the exchanges share a timezone, whether one side has an upcoming closure or half-day, and how much of the shared window survives after both regular-session calendars are applied.
Timezone drift watch
ASX is UTC+11:00 in Australia/Sydney; JPX Tokyo is UTC+09:00 in Asia/Tokyo. Recheck the page around DST transition weeks because one side can move while the other does not.
Next full-closure check
ASX: Christmas Day (Fri, Dec 25, 2026) JPX Tokyo: Labor Thanksgiving Day (Mon, Nov 23, 2026) The overlap skips modeled full-day closures, but unusual exchange notices still belong to the official calendars.
Half-day sensitivity
ASX: Christmas Eve (Thu, Dec 24, 2026, early close 2:10 PM) JPX Tokyo: No modeled half-day appears in the current catalog window. Half-days can shorten or remove the practical overlap even when the regular-session model says both markets are open.
Coordination pattern
partial overlap: The shared window is 2h 30m, enough for scheduled monitoring but still narrow enough to verify closures first.
Session shape
JPX Tokyo has a split regular session, so the overlap grid should be read as separate open blocks rather than one continuous day. ASX is anchored in Australia; JPX Tokyo is anchored in Japan. Cross-country pairs need both calendars checked.
Currency boundary
ASX is denominated in AUD, while JPX Tokyo is denominated in JPY; schedule overlap does not imply currency or liquidity equivalence. This page is a calendar and timezone reference only, not a trading signal or investment comparison.
Use the watchlist as a pre-check before relying on the overlap for publishing, operations, settlement planning, or live market monitoring. It still does not replace the official exchange notice feeds.
Overlap reliability notes
What this overlap window means
ASX local schedule
Regular session: 10:00 AM-4:00 PM
Australia/Sydney
JPX Tokyo local schedule
Morning session: 9:00 AM-11:30 AM; Afternoon session: 12:30 PM-3:30 PM
Asia/Tokyo
Caveats
The overlap calculation skips tracked full-day closures, but it does not promise that both exchanges are tradable through half-days, auctions, lunch extensions, halts, or emergency notices.
Official sources: ASX cash-market trading hours and JPX domestic trading hours. Check both exchanges before making time-sensitive trading decisions.
Hour-by-hour
24-hour overlap grid (UTC)
Each bar is one UTC hour. The highlighted cells show when both ASX and JPX Tokyo are simultaneously in their regular session.
ASX JPX Tokyo Both open
ASX
JPX Tokyo
Overlap
0h
3h
6h
9h
12h
15h
18h
21h
Bars show each exchange's regular session in UTC across a 24-hour clock.
ASX
Australian Securities Exchange
Open the full market-hours page for ASX.
JPX Tokyo
Japan Exchange Group
Open the full market-hours page for JPX Tokyo.
Frequently asked questions
- Do ASX and JPX Tokyo overlap live?
- Yes. They share about 2h 30m of regular-session overlap on the next common trading day.
- What time is the overlap in each local market?
- ASX: 11:00 AM to 01:30 PM GMT+11. JPX Tokyo: 09:00 AM to 11:30 AM GMT+9.
Related market pages
After checking an overlap pair, the next useful move is usually an individual exchange page or the broader market hub.
Market hours hub
Browse all tracked exchanges and open-now summaries from one place.
ASX market page
Open the full ASX session page with local session conversions.
JPX Tokyo market page
Open the full JPX Tokyo session page with local session conversions.
Browse market pages
Use the market browse layer to move through tracked exchanges and overlap pages quickly.