How long should an auction run? You can schedule your auction for one, three, five, seven, or ten days. The conventional wisdom is that unless you are selling a time-sensitive item, such as tickets to a baseball game, run the auction for at least seven days. There is an additional fee to run an auction for ten days.
When should an auction start? Consider when the auction will end and when buyers are most likely to bid. Your auction ends on the day you determine, during the same hour that you commence the auction. Most bidding occurs during the last hours of an auction and eBay has its highest traffic on weekends, particularly Sunday afternoons. During weekdays, eBay's traffic increases between 5:00 and 8:00 p.m. Pacific Standard Time (FYI, eBay operates on PST).
As an example, if you are posting items for a seven-day auction at 8:00 a.m. on a Tuesday, the final bidding will be between 2:00 and 3:00 a.m. Tuesday one week later — perhaps not an ideal time for buyers to seek out your crocheted baby hats (or maybe it is).
How is the schedule set? Use the dropdown menu in the Sell Your Item form to program when you want the auction to commence.