A very long time. Some areas have hiring committees, even for hourly positions. They have like 4-6 people, set aside for several hours on multiple days, and then meet more to talk about who they want. The hiring manager does make the final decision, but it's quite resource intensive.
At least one (1) month
Answered - Archival Processor IV (Current Employee) - Denver, CO
Three interview, one a week.
Answered - Maintenance Technician (Former Employee) - Denver, CO