Black Friday sales usually last longer than just the one Friday now. Most big retailers stretch “Black Friday” deals across at least the long weekend through Cyber Monday, and many run promos for a week or more.

Typical length of Black Friday sales

  • The classic window is from Black Friday itself through the end of Cyber Monday, so about 4 days of core, heavily advertised deals.
  • Many chains now treat it as a full “Black Friday week” or even 7–10 days of rolling discounts, especially online.
  • Some stores push early “pre-Black Friday” offers starting in early or mid‑November and keep some level of discounts going into the first week of December.

Real‑world store examples

  • Amazon has recently run a Black Friday sale from around November 20 through Cyber Monday (roughly 12 days), with some lightning deals lasting only a few hours.
  • Target, Walmart, and other big-box retailers often start special Black Friday‑branded deals 1–2 weeks before Thanksgiving, then continue them through the weekend.
  • Some department and home stores run 7–10 day Black Friday events that start the Friday before Thanksgiving and end the Sunday after.

What “ends” when?

  • The strict “Black Friday” label often ends at 11:59 p.m. on the Friday, but the same or similar discounts usually continue over the weekend and into Cyber Monday.
  • Cyber Monday is widely treated as the last official day of the Black Friday–Cyber Monday sale season, though a few retailers extend into “Cyber Week” until about December 5.
  • Doorbusters and headline tech deals can sell out within hours, even if the sale period is advertised as lasting several days.

Current shopper / forum vibe

  • Shoppers on forums often comment that “Black Friday” can feel like it lasts a month now, with promotions starting in early November and running right up to Christmas in some regions.
  • Veteran deal hunters point out that the best prices tend to cluster around the week of Black Friday, but good discounts also appear in the days before and after, especially online.

TL;DR: Expect meaningful Black Friday sales for about a week (sometimes longer), but treat the Black Friday–Cyber Monday stretch as the prime time, and jump quickly on limited‑time or “doorbuster” offers.

Information gathered from public forums or data available on the internet and portrayed here.