PHP strtotime incrementing by weekdays
Today is Friday, April 17, 2015. In my app, it automatically generated a "due date" for each assignment. It's set to "5 business days". To accomplish this, We use: date('m/d/Y', strtotime("+5 weekdays")); However, today, this output "04/26/2015". Why? That's a sunday. Why doesn't it give me the 24th, which is what I want? DEMO: http://codepad.org/2wvnypOC P.S. After speaking to my boss, we switched to strtotime("+5 days") , but I'm still curious what was wrong with "weekdays" . It's a bug . It has been fixed in >= 5.5.0. So you'll need to work around it or upgrade your php version. <?php