This text explores the nature of physical time within the context of the universe's origin and the theory of relativity. The author challenges the generally accepted assumption that time has flowed at a constant rate since the Big Bang. Drawing an analogy with black holes, where gravity causes time dilation, the author suggests that during the early stages of the universe—characterized by extreme density—time might have flowed significantly slower than it does today. This hypothesis leads to the question of whether the "first three minutes" of the universe were, in fact, much longer from a relativistic perspective. Furthermore, the text examines the methodological difficulties of measuring the age of the universe using time units that may not be constant. It raises fundamental questions about the validity of current cosmological calculations and explores whether a time-independent formula exists that could accurately capture these transformations without being bound by the variability of space and time.