Why every couple should be afraid on January 9.

Question: What are you doing on January 9th?

In Australia, it’ll fall on next Monday. Will you be heading to work? Still enjoying your summer break? Starting an affair? Or will your partner be starting one, instead?

Data accrued form thousands of cheaters has found that this time of year is particularly rife for those wanting to stray.

Gleeden, a dating site for people looking to cheat, has revealed that its website is the busiest day for them is on the second Monday after the holidays.

Which, if you do the maths, means that January 9 is the day your partner is most likely to cheat in 2017. Lovely, I know.

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And if you’re wondering how relevant a niche, cheating website is, then perhaps its 3.3 million members might sway you into considering its credibility a little more.

According to the New York Post a Gleeden spokesperson said their data from 2016 means they are confident this is one of the most common periods for partners to stray.

“On Monday, January 11, 2016, the site also recorded an increase in registrations of more than 320 percent,” they said.

“This trend is observed throughout the month of January.”

So what’s at the crux of this mass cheating? Is it purely coincidence? Or perhaps a strange kind of New Years resolution to be a worse person than the year before?

The New York Post reports that Solene Paillet, the director of communications at Gleeden, says it has a whole lot to do with the fact we are surrounded by family and what they perceive as monotonous routine around the Christmas period.

“Routine may weigh down on individuals, or be rather oppressive when it follows extended periods devoted to family life,” she said.

“This is the result of a legitimate human need: to have fun and think of oneself.”

Perhaps on January 9 this year you ought to hold tight to that partner of yours.