How long did it actuall take for those Daimyos to constuct their citad

Was browsing website, and found out some interesting information about those renowned castles in sengoku period.

Talking about three legendary figures and their three legendary castles:

Oda Nobunaga's Azuchi Castle:
Residential castle of Oda Nobunaga, built 1576-9 on the strategic eastern coast of the great Biwa Lake in Shiga. Azuchi became the crucible of Nobunaga's economic policies.
When Nobunaga was attacked by Akechi Mitsuhide at the Honno-ji, the castle was put to the torch.

Toyotomi Hideyoshi's Osaka Castle:
Hideyoshi began building Osaka Castle at the site of the former Hongan-ji Temple in 1583.
Hideyoshi, who called himself successor to Nobunaga Oda, built Osaka Castle by modeling it after Azuchi Castle, Nobunaga's castle.
It took about one and a half years to complete the Honmaru (Inner Bailey), grew into an unprecedentedly large and impregnable castle of distinction by gradually expanding its structures,extending for 15 years in Hideyoshi's lifetime. Osaka in Hideyoshi's period became a model of the castle town in the Modern Age.

Tokugawa Ieyasu's Edo Castle:
In 1590, Hideyoshi wiped out the Hojo clan in their home territory of Odawara, and gave their seized lands to Ieyasu. Ieyasu set about construction of his garrison town, with a vast castle. He was awarded the shogun in 1603, but the Edo Castle wasn't completed till in the reign of the third shogun, Iemitsu, fully forty years after Ieyasu has first entered that region. Edo Castle (also called Chiyoda Castle) was plain in comparison with Nobunaga's Azuchi or Hideyoshi's Osaka. But it was strongly built. (Fit perfectly with Ieyasu's personality, I think) The castle became the symbol of Edo.