Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to provide device enhancements for software defined silicon implementations are disclosed. Example apparatus disclosed herein include a request interface to receive a request for a timestamp. Disclosed example apparatus also include a property checker to determine a first value of an electrical property of a feature embedded in a silicon product, the feature having electrical properties that change over time. Disclosed example apparatus further include a relative time determiner to calculate a relative time between the request and a previous event based on the first value of the electrical property and a second value of the electrical property, the second value of the electrical property associated with the previous event.