TechDoc Electronic Review

Does TechDoc count electronic review duration in calendar or work days? I thought it was calendar days, but since the new release, my reviews that are set to Auto-Concur and Auto-Promote do not always progress. For example, one of my reviews has 3 levels. Level 1 duration is 10 days. It was started on 2/12/15 with Auto-Concur and Auto-Promote settings. It has not progressed. Another was started on 2/13/15. It has also not progressed. As a workaround, if I manually promote them, will the voters who have not voted appear to have Auto-Concurred in the history log?