This is one advantage of working with a realtor. A good realtor knows how to get the information you need to make an informed decision prior to making an offer on a home purchase. If you are in the Florida Panhandle, I would be happy to assist you.
If its listed with a brokerage firm, the MLS "customer Info sheet" has it. Surely timing is a motivational catalyst and it pays to gauge the level of interest Sellers may have in reducing the price based on timing. Now, be careful as many are re-lsted with different companies and often the same agent will take it off and put it back for sale. This is not to say that some Sellers are more motivated from the start and list lower than their neighbors stale listing as they are aware of competing supply of inventory. I would do a property history search, and give you the answer. You are free to call me or email me with the property address or MLS and will be glad to oblige.
In our area this information is often not revealed until the close of a sale or a house on the market has expired. A realtor should be able to give you some indication to how long a house has been on the market by their knowledge of the home or by a little real estate dig.
Ask your Realtor who can look it up in the professional Multi Listing System. Make sure he or she calculates the total days on market (DOM) - in case the house was listed with different agencies. Or, just send me an e-mail if you'd like to know the DOM of a home that's for sale in North West Florida. Have a good day.
If you have established a relationship with a Realtor they should be able to quickly provide this information to you. Otherwise, it is not a matter of public record and you won't likely have access to that information.