Black Friday sales usually run all weekend, from Friday through Cyber Monday, but many stores now stretch them over one to two weeks or even most of November.

Typical sale length

  • Traditionally, the core Black Friday period is four days: Friday, the weekend, and Cyber Monday as the online finale.
  • Many big retailers treat it as a full “Black Friday week” or “Cyber Week,” keeping deals live for 7–10 days.

How long big stores run deals

  • Amazon has recently run Black Friday sales from around Nov. 20 through Cyber Monday (about 12 days), with limited-time Lightning Deals inside that window.
  • Some department stores run promos from the Friday before Thanksgiving through the Sunday after, so roughly 10 days of offers.

Early and extended promos

  • Lots of shops now start “early Black Friday” in early or mid‑November, changing offers each week to keep traffic coming back.
  • In some markets, forum users report that “Black Friday” style discounts can linger all the way until mid‑December or even up to Christmas Eve.

What ends quickly vs. what lasts

  • Short‑lived “doorbuster” or Lightning deals can sell out or expire in hours even though the broader sale is still running.
  • More general category discounts (like “up to 30% off electronics”) often last the full week or weekend, making them easier to catch if you miss day‑one.

Quick takeaway

  • If you want the absolute best, limited “doorbuster” prices, plan for Black Friday itself and the days right around it.
  • If you are just looking for solid deals, you usually have at least a week—and often most of late November—to shop Black Friday–style discounts.

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