Cross-market view
COMEX Gold × OSE Gold Standard: Trading Hours Compared
Joint windows, single-leg hours, and 2026 mismatched holidays for Gold (COMEX GC) and Gold Standard (OSE JAU), on a typical trading day (UTC).
Latest relevant source check 2026-10-20 · sources on each product page · Verify against official exchange notices before trading
Joint trading windows (typical day)
COMEX Gold
OSE Gold Standard
Both open
Both open (UTC): 08:00–21:00 · 23:45–06:45 (+1 day)
COMEX Gold
OSE Gold Standard
Both open
Both open (UTC): 08:00–21:00 · 23:45–06:45 (+1 day)
Axis is UTC 00:00–24:00 on a Tuesday–Friday day; Monday opens, Friday closes and holiday eves follow each exchange's notice.
Each leg in its own time
| Gold (COMEX GC) | 17:00 (prev day)–16:00（US Central Time） |
|---|---|
| Gold Standard (OSE JAU) | Day 08:45–15:45 · Night 17:00–06:00 (+1 day)（Japan Standard Time） |
2026 mismatched holidays (one-sided days)
- COMEX Gold closed, OSE Gold Standard trading: 1 days · longest stretch 2026-12-25
- OSE Gold Standard closed, COMEX Gold trading: 7 days · longest stretch 2026-01-01 – 2026-01-02
FAQ
- When are COMEX Gold and OSE Gold Standard open at the same time?
- On a typical trading day (UTC) the joint windows are 08:00–21:00, 23:45–06:45 (+1 day) in winter (08:00–21:00, 23:45–06:45 (+1 day) in summer), about 20h in total.
- Does OSE Gold Standard keep trading while COMEX Gold is closed?
- Yes — on 1 trading days in 2026 COMEX Gold is closed while OSE Gold Standard trades, the longest stretch being 2026-12-25. These are one-sided exposure windows for cross-market positions.
- Does daylight saving change the COMEX Gold–OSE Gold Standard overlap?
- The joint windows in the two seasonal scenarios are identical. A change in overseas opening or closing times need not change the overlap. The two typical scenarios do not represent US/UK transition gaps or temporary exchange schedules. Check dated exchange notices; where a date query is available, check its coverage.