Each year, this symbolic day is used to raise awareness around and combat the impact of pay inequities. Equal Pay Day 2024 is on March 12 and marks the current state of the gender pay gap: 84% for full-time workers and 78% for all workers (including part-time and seasonal).
See this article from AAUW National for more information: Equal Pay Day Calendar – AAUW : Empowering Women Since 1881