It’s been a while since I last published Facebook sharing data and I was waiting to gather a large enough sample set to produce this graph.
I analyzed the average (interquartile mean to be specific) number of times articles were shared on Facebook based on the time of day they were published and I found that Facebook sharing seems to peak on articles that are posted in the morning, 9AM EST specifically.
I’ve previously found that ReTweeting peaks a few hours later in the day so the takeaway here I think is to publish your articles in the morning and then Tweet about them later in the day.
Another interesting data point here is the volume of stories posted at different hours. Notice the light gray bars at the bottom of the chart, they peak two hours after the “sharing peak”.
If you’re curious about my methodology, read this.