Presenters, reporters and editors in locations as far-flung as Cairo and the Syrian border took to social media in solidarity against the pay gap, and called on male colleagues to support the cause.
So, if women aren't getting paid, why should we work?
A survey by the National Union of Journalists released on Equality Pay Day - which marks the point in the year at which female employees "start working for free" - found that 8 out of 10 women at the BBC believe they are paid less than their male counterparts.
Last year, Icelandic women shortened their day by 14 per cent to represent the figure that women there, on average, earn less than men.
Senior BBC women including Mishal Husain, Anita Anand and Rachel Burden have used "equal pay day" to pressure the corporation to close the gender pay gap. At this rate, it will take 62 years to close - meaning that women starting in the world of work today, will never see pay equality.
The group also said that although the gap is wider for women in their 50s, it is also growing among younger women from 1.1 per cent in 2011 to 5.5 per cent this year.
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The NUJ said it is pursuing action for equal pay on behalf of more than 100 of its members at the BBC.
"We are going backwards and that is extremely worrying", Sam Smethers, Fawcett Society chief executive, said in a statement.
Many of us think it's time for a change, but let's be honest: we have been talking about this issue forever.
She says employers often say they "respect" women, and champion specific examples of women who are doing well in their organisations but are are "not looking holistically" - at how they are treating all their female employees.
The Institute of Economic Affairs has shown that the so called pay gap between between men and women aged 22 to 39 is "negligible".
"There is an underlying pay gap that there should not be".