March Madness starts at noon this Thursday, and there'll be games during the day on Friday too.

And according to a new survey, the games will cause a LOT of us to ignore our jobs.

One in three people plan to spend more than three hours each DAY watching basketball at work . . . and another three million people will watch between one and three hours at work.

Most of them will watch on their work computers, and all that extra streaming video will slow down company internet speeds . . . which means that even people who AREN'T watching basketball are going to be less productive than they usually are.

Overall, companies will lose about $134 million in productivity on Thursday and Friday, just because of the tournament. 

And that doesn't even include all the time that workers will spend BEFORE Thursday, organizing office pools and researching which teams to pick for their brackets. 

Ya’ll can get your brackets right HERE and waste all kinds of time. You’re welcome. (Daily Mail)