Live coverage workflow
Use 14:30 to 16:30 UTC as the shared UTC coverage block, then translate it as 02:30 PM to 04:30 PM GMT+0 for LSE and 09:30 AM to 11:30 AM EST for Nasdaq.
Market overlap
LSE vs Nasdaq 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 Nov 5, 7:03 PM UTC.
Next common trading day
Thu, Nov 5 / Thu, Nov 5
LSE
02:30 PM to 04:30 PM GMT+0
Nasdaq
09:30 AM to 11:30 AM EST
UTC window
14:30 to 16:30 UTC
Overlap minutes
120
Best handoff read
Same-day live overlap
Reference date
Thu, Nov 5 / Thu, Nov 5
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.
Workflow examples
Practical ways to use the LSE / Nasdaq 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 LSE: Christmas Day (Fri, Dec 25, 2026) Then check Nasdaq: Thanksgiving Day (Thu, Nov 26, 2026)
Half-day and notice workflow
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 after Thanksgiving (Fri, Nov 27, 2026, early close 1:00 PM)
Overlap pair read
LSE and Nasdaq: 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
LSE vs Nasdaq is a cross-country · different currencies · partial overlap comparison. LSE uses Europe/London; Nasdaq uses America/New_York. The overlap has to be read through two exchange-local clocks, not a fixed UTC offset.
Overlap strength
2h of shared regular-session time equals 31% of the shorter modeled regular-session day. UTC window: 14:30 to 16:30 UTC.
Local-market reading
LSE sees the overlap as 02:30 PM to 04:30 PM GMT+0; Nasdaq sees it as 09:30 AM to 11:30 AM EST. This is the important distinction from a generic “markets open now” list.
Session denominator
LSE models 510 regular-session minutes per trading day; Nasdaq models 390. The overlap percentage is based on the shorter of those two regular-session totals.
Source boundary
Regular sessions and full-day closures come from London Stock Exchange and Nasdaq market schedule. 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
LSE is denominated in GBP; Nasdaq is denominated in USD. 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
LSE and Nasdaq: 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
LSE is UTC+00:00 in Europe/London; Nasdaq is UTC-05:00 in America/New_York. Recheck the page around DST transition weeks because one side can move while the other does not.
Next full-closure check
LSE: Christmas Day (Fri, Dec 25, 2026) Nasdaq: Thanksgiving Day (Thu, Nov 26, 2026) The overlap skips modeled full-day closures, but unusual exchange notices still belong to the official calendars.
Half-day sensitivity
LSE: Christmas Eve (Thu, Dec 24, 2026, early close 12:30 PM) Nasdaq: Day after Thanksgiving (Fri, Nov 27, 2026, early close 1:00 PM) 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, enough for scheduled monitoring but still narrow enough to verify closures first.
Session shape
Both markets are modeled as one continuous regular session per trading day, which makes the overlap block easier to interpret. LSE is anchored in United Kingdom; Nasdaq is anchored in United States. Cross-country pairs need both calendars checked.
Currency boundary
LSE is denominated in GBP, while Nasdaq is denominated in USD; 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
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
24-hour overlap grid (UTC)
Each bar is one UTC hour. The highlighted cells show when both LSE and Nasdaq are simultaneously in their regular session.
LSE Nasdaq Both open
LSE
Nasdaq
Overlap
0h
3h
6h
9h
12h
15h
18h
21h
Bars show each exchange's regular session in UTC across a 24-hour clock.
LSE
London Stock Exchange
Open the full market-hours page for LSE.
Nasdaq
Nasdaq Stock Market
Open the full market-hours page for Nasdaq.
Frequently asked questions
- Do LSE and Nasdaq overlap live?
- Yes. They share about 2h of regular-session overlap on the next common trading day.
- What time is the overlap in each local market?
- LSE: 02:30 PM to 04:30 PM GMT+0. Nasdaq: 09:30 AM to 11:30 AM EST.
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.
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.