My knowledge is based on information available .
However, the widely accepted scientific understanding is that the universe began with the Big Bang approximately 13.8 billion years ago. This conclusion is supported by extensive observational evidence, including the cosmic microwave background radiation, the abundance of light elements, and the large-scale structure of the universe.
If there were a significant deviation from this understanding, it would require substantial scientific evidence and analysis to challenge the existing theories. Until such evidence emerges, the prevailing scientific consensus supports the idea that the universe is much older than a few hours or days.