Growing is patience. And there is nothing wrong with your plant. You have been told age of plant, yet you still want an answer that doesnt really matter?
You dont have an issue with plant, so just start a grow thread so people can watch your progress and chime in when needed.
Based on the circumference of the pot, divided by the number of fan leaves, add in the total height and wattage of your grow light... your plant is exactly 28 days 3 hrs and 22 minutes old.
Based on the circumference of the pot, divided by the number of fan leaves, add in the total height and wattage of your grow light... your plant is exactly 28 days 3 hrs and 22 minutes old.