Typically, about 1 3 days of counting time is required. In spite of many uncertainties, this method gives fairly good idea about the age of the sample up to about 60000 years.

How long does the process of carbon dating take?

about 5,730 years C (the period of time after which half of a given sample will have decayed) is about 5,730 years, the oldest dates that can be reliably measured by this process date to approximately 50,000 years ago, although special preparation methods occasionally make accurate analysis of older samples possible.