What Time Does the NYMEX Open and Close? A Clear Guide to Trading Hours

If you have ever opened your charting platform on a Monday morning, checked the time, and wondered whether the market is actually moving yet, you are not alone. The New York Mercantile Exchange, better known as NYMEX, runs on a schedule that feels almost continuous—but the hours when the market truly comes alive are far more concentrated than most people assume.

The Core NYMEX Trading Hours

NYMEX operates under the CME Globex electronic platform, and its schedule is designed to cover nearly the entire trading week. In U.S. Eastern Time, the exchange opens on Sunday at 6:00 PM and runs through Friday at 5:00 PM ET, with a daily maintenance break from 5:00 PM to 6:00 PM ET. That means from Sunday evening until Friday afternoon, the market is accessible for almost 23 hours each day.

But here is the part that matters for anyone actually watching price action: the most active window is not the entire session. The period when U.S. volume and price discovery peak runs from 9:00 AM to 2:30 PM Eastern Time. That is when the major U.S. economic data drops, when the institutional desks are fully staffed, and when the energy and metals contracts that define NYMEX—crude oil, natural gas, gold, silver—see their tightest spreads and most meaningful moves.

For traders outside the United States, this distinction between “open” and “active” is where things get interesting.

NYMEX Trading Hours in India: The Evening Overlap

If you are trading from India, the NYMEX session does not align with your daytime. The active U.S. window translates to a late-evening block in Indian Standard Time. When U.S. daylight saving is in effect, that active period lands roughly between 6:30 PM and 12:00 AM IST. When daylight saving ends, it shifts about an hour later, to roughly 7:30 PM to 1:00 AM IST.

This is precisely why MCX’s evening session extends as late as it does. The Indian commodity exchange deliberately overlaps with the U.S. open because that is when global pricing for crude and metals is being set. For an Indian trader watching WTI or natural gas, the window from about 8:30 PM to 11:30 PM IST is often the most liquid and the most responsive to news.

What Time Does NYMEX Close?

The straightforward answer is Friday at 5:00 PM ET. But there is a daily close-and-reopen cycle that catches people off guard. Every day, trading halts at 5:00 PM ET for a 60-minute break, then resumes at 6:00 PM ET for the next trade date. So if you are looking at a chart and see a flat line or a gap around that time, it is not a data error—it is the scheduled reset.

On U.S. holidays, the schedule adjusts further. Most Monday holidays follow a pattern where Globex halts around midday and reopens that same evening for the next session. But the specific hours vary by product group, and CME Group typically finalizes those schedules only a couple of weeks in advance.

Where Camovia Tray Fits In

Here is the practical friction that comes with a market that runs from Sunday evening to Friday afternoon across multiple time zones: you do not want to keep a full MT5 or MT4 terminal open and visible all day just to catch a move during the active window.

That is the problem Camovia Tray addresses. It turns your MetaTrader terminal into a system tray tool. You can hover over the tray icon to see live quotes for your watchlist without opening the full platform. When the NYMEX active session hits—whether that is 9:00 AM ET or the corresponding evening hours in India—you can check whether crude is moving without context-switching out of whatever else you are doing. If you have open positions, the tray window shows them with current P&L, and you can close a position directly from there with a two-step confirmation.

The quotes and position data stay on your computer. The terminal does not need to be front-and-center for you to stay aware of the market that never quite sleeps.

The Takeaway

NYMEX is technically open from Sunday evening to Friday afternoon, but the hours that matter are narrower. The active U.S. session runs 9:00 AM to 2:30 PM ET, which translates to a late-evening window for Indian traders. The daily 5:00 PM ET break and the Friday close are the two hard boundaries to remember. Everything else is about deciding how much of that schedule you actually need to watch—and how you want to watch it.