It takes at least 4 years.
Ossification, the process of bone formation, typically begins in the fetus and continues into early adulthood. In humans, it generally takes until the late teenage years to early twenties for ossification to be completed, with most bones fully maturing by around age 25. Factors such as genetics and nutrition can influence the timing of this process.
a ossification center forms in the fibrous tissue
titanic was completed in 1911
Surgeries requiring suturing can take as long as two to three hours.
I completed it in about 2 days
20 years
Very long.
about 3-4 years
Until the next morning.
7 hours
Construction was begun in 1936 and the guest house was completed in 1939.
I have just completed this journey and it will take approximately 3 hours, depending on weather and traffic it may take longer.