What’s the time commitment to earn the PHR designation?

My boss recently encouraged me to go for my Professional in Human Resources certification from the Society for Human Resource Management. I’m considering it, but need to get an idea of just how big a time commitment I would be signing up for. I see that SHRM says I should plan on a minimum of 65 study hours, but I have a feeling that’s on the low side. For any PHRs out there, how much time did you spend going for the designation? Is SHRM’s three-day prep course worth it?—Bruce, N.J.

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