How Long Can You Keep Butter Out of The Refrigerator?

Cheapism - “Time: One to two days Most refrigerated sticks of butter will last up to one month after the sell-by date on the package. Unlike most dairy products, however, butter is a food that can also survive at room temperature without spoiling for one to two days, thanks mostly to its low lactose levels and high saturated fat content.”

and there is this from food network:

“According to the USDA, butter is safe at room temperature. But if it’s left out for several days at room temperature, it can turn rancid causing off flavors. The USDA does not recommend leaving it out more than one to two days.

According to the National Dairy Council’s Dairy Good website, it’s okay to leave butter out sometimes — depending on the type of butter. Salted butter has less of a chance of spoiling on the counter compared to unsalted butter. If you want to leave your butter out for a handful of hours, opt for the salted kind. Keep in mind that the amount of salt found in salted butter differs. Compare food labels and select the butter with the most salt if you plan on leaving it at room temperature — and be mindful not to leave it on the counter for more than a couple of days. You can store butter in a butter dish or a popular French butter keeper.”