Cross-market view
Copper × Copper: Trading Hours Compared
Joint windows, single-leg hours, and 2026 mismatched holidays for Copper (LME CA) and Copper (COMEX HG), on a typical trading day (UTC).
Data reviewed 2026-09-04 · sources on each product page · Verify against official exchange notices before trading
Watch both legs on the live timeline →
Joint trading windows (typical day)
| winter | 01:00–19:00Total 18h · Copper only 0h · Copper only 5h |
|---|---|
| summer | 00:00–18:00Total 18h · Copper only 0h · Copper only 5h |
Computed for a typical Tuesday–Friday trading day; Monday opens, Friday closes, and holiday eves can differ per exchange notices.
Each leg in its own time
| Copper (LME CA) | 01:00–19:00（London time） |
|---|---|
| Copper (COMEX HG) | 17:00 (prev day)–16:00（US Central Time） |
2026 mismatched holidays (one-sided days)
- Copper closed, Copper trading: 7 days · longest stretch 2026-04-03 – 2026-04-06
- Copper closed, Copper trading: 0 days
FAQ
- When are Copper and Copper open at the same time?
- On a typical trading day (UTC) the joint windows are 01:00–19:00 in winter (00:00–18:00 in summer), about 18h in total.
- Does Copper keep trading while Copper is closed?
- Yes — on 7 trading days in 2026 Copper is closed while Copper trades, the longest stretch being 2026-04-03 – 2026-04-06. These are one-sided exposure windows for cross-market positions.
- Does daylight saving change the Copper–Copper overlap?
- Yes — the table shows winter and summer windows separately; values can differ by an hour during the weeks when regions switch DST on different dates.