How to keep track of employees for multiple job sites?

[Taylor Shapiro]

We have multiple jobs going on at any given time. Our employees are given instruction on which job site to work at for the day along with instruction on what to do. I cannot be at each site to make sure each employee arrives on time.

How can we keep track of when they arrive and when they leave?

Does anyone here use software of any kind that lets employees sign in and log their time spent on a job site?

We currently use quickbooks, but I've done some research on easylocking.com (no affiliation) as well.

Recommendation?

Thanks