“I’m out of office until 2019.”

The automated email replies from working women were part of a campaign to mark Equal Pay Day in Britain on Saturday and to draw attention to the country’s gender pay gap.

The Fawcett Society, a group that campaigns for gender equality and women’s rights, set Nov. 10 as the date in Britain when women begin working effectively “for free” when compared to men, based on the disparity in pay annually.

Mind the Gap

There are many ways of looking at wage discrimination. But widely used definitions of the gender pay gap use the difference in median or average pay between men and women in full-time jobs in terms of gross salary without overtime.

In Britain, the gap was 13.7 percent this year. Put another way, women earn on average 86.3 percent of what men do.