The UFC events generally follow a schedule where preliminary cards start earlier and the main card follows later in the day. For example, the UFC Fight Night on August 23, 2025, started with prelims at around 12:00 PM EDT and the main card at around 3:00 PM EDT. Upcoming events typically start in the early evening local time, with main cards often beginning around 7:00 PM ET, as reflected in multiple recent and scheduled events such as UFC Fight Night and UFC 321 with main cards around 7:00 PM and prelims earlier in the day.

To summarize for a typical UFC event:

• Early prelims usually start around 6:00 PM ET on ESPN+ or streaming platforms.
• Prelims often start around 8:00 PM ET.
• The main card usually starts around 10:00 PM ET or 7:00 PM ET depending on the event and location.

If a user asks "when does UFC start," it usually refers to when the main card starts, which is commonly between 7:00 PM and 10:00 PM ET on event days. Specific start times do vary by event and location. For the very next UFC events, the start times are:

• UFC Fight Night: Imavov vs Borralho on September 6, 2025, Main Card at 7:00 PM EDT.
• UFC Fight Night: Lopes vs Silva on September 13, 2025, Main Card at 7:00 PM EDT.

For precise start times, it is best to check the official UFC schedule for the specific event date, as times may differ by event and broadcasting platform.