The Central Time Zone includes the states of Alabama, Arkansas, Florida, Illinois, part of Indiana, Iowa, part of Kansas, part of Kentucky, Louisiana, part of Michigan, Minnesota, Mississippi, Missouri, Nebraska, North Dakota, Oklahoma, part of South Dakota, part of Tennessee, most of Texas, and Wisconsin.
(Total non work time) 30 days. Total days available for work 230 days. Next you have to determine your actual billable time. In most settings, the actual billable time will average 6 hours out of every 8, due to cancellations, no shows, or other problems. So: Available time = 230 days =1840 hrs/yr. Billable time/day = 6/8 =1380 hrs/yr.
While the industry average time-to-fill for engineering in the US was 58 days, some roles had much lower numbers, like data scientist with 28 days. Meanwhile, hiring a senior QA engineer was taking 121 days on average. This range is, of course, not limited to engineering jobs. A customer experience specialist job took on average 18 days to fill in the US, whereas a customer success manager was taking 100 days. These vary strongly from the industry average for customer service of 33 days.