Cyber Monday is a marketing term for the Monday after the Thanksgiving holiday in the United States. The term "Cyber Monday" was created by marketing companies to persuade people to shop online.

From Wikipedia

Cyber Monday 2017Nov 27, 2017
Cyber Monday 2018Nov 26, 2018
Cyber Monday 2019Dec 2, 2019
Cyber Monday 2020Nov 30, 2020
Cyber Monday 2021Nov 29, 2021
Cyber Monday 2022Nov 28, 2022
Cyber Monday 2023Nov 27, 2023
Cyber Monday 2024Dec 2, 2024
Cyber Monday 2025Dec 1, 2025
Cyber Monday 2026Nov 30, 2026