If you are using Sidetiq to set recurrence to schedule background jobs, then you may want to be aware of this known and reported issue with recurrence. BTW, recurrence schedule is done using ice_cube gem This is likely an issue in Ruby 1.9.3 but I have posted comments on this article here along with git issue to clarify if its an issue with Ruby 2.0 and above. References at the bottom of this email. Issues: We generally set recurrence daily or hourly in our app/workers/job_name.rb like this recurrence do daily end recurrence