Live coverage workflow
Use 13:30 to 15:30 UTC as the shared UTC coverage block, then translate it as 02:30 PM to 04:30 PM GMT+1 for LSE and 09:30 AM to 11:30 AM EDT for Nasdaq.
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Market overlap
Compare the next common trading window between London Stock Exchange and Nasdaq Stock Market, 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 Jun 6, 2:37 PM UTC.
Next common trading day
LSE
02:30 PM to 04:30 PM GMT+1
Nasdaq
09:30 AM to 11:30 AM EDT
UTC window
13:30 to 15:30 UTC
Overlap minutes
120
Best handoff read
Same-day live overlap
Reference date
Mon, Jun 8 / Mon, Jun 8
LSE and Nasdaq share about 2h of regular-session overlap on the next common trading day, which is the cleanest window for live cross-market monitoring.
Overlap evidence
Practical use cases
Trust boundaries
Workflow examples
The overlap page is for calendar and operations planning. It should help teams schedule monitoring, handoffs, and source checks without drifting into investment advice.
Use 13:30 to 15:30 UTC as the shared UTC coverage block, then translate it as 02:30 PM to 04:30 PM GMT+1 for LSE and 09:30 AM to 11:30 AM EDT for Nasdaq.
Before scheduling a recurring cross-market ritual, check LSE: Summer bank holiday (Mon, Aug 31, 2026) Then check Nasdaq: Juneteenth National Independence Day (Fri, Jun 19, 2026)
If the overlap matters for publishing, ops, or compliance timing, check half-day sensitivity first: LSE: Christmas Eve (Thu, Dec 24, 2026, early close 12:30 PM) Nasdaq: Day before Independence Day (Thu, Jul 2, 2026, early close 1:00 PM)
Overlap pair read
Calendar watchlist
Reference fields from both exchanges include slugs, local zones, currencies, session rows, official sources, overlap labels, UTC window, pair classification, overlap share, current offsets, next closures, and half-day checks.
Overlap reliability notes
LSE local schedule
Regular session: 8:00 AM-4:30 PM
Europe/London
Nasdaq local schedule
Regular session: 9:30 AM-4:00 PM
America/New_York
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: London Stock Exchange and Nasdaq market schedule. Check both exchanges before making time-sensitive trading decisions.
Hour-by-hour
Each bar is one UTC hour. The highlighted cells show when both LSE and Nasdaq are simultaneously in their regular session.
LSE
Nasdaq
Overlap
Bars show each exchange's regular session in UTC across a 24-hour clock.
LSE
Open the full market-hours page for LSE.
Nasdaq
Open the full market-hours page for Nasdaq.
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.
LSE market page
Open the full LSE session page with local session conversions.
Nasdaq market page
Open the full Nasdaq session page with local session conversions.
Browse market pages
Use the market browse layer to move through tracked exchanges and overlap pages quickly.