How long was Odysseus stuck on calypso's island?

Odysseus was stuck on Calypso's island, Ogygia, for seven years. Calypso, a nymph, kept him there, wanting him to stay with her as her husband. Despite her affection, Odysseus longed to return to his home in Ithaca and his wife, Penelope. Ultimately, the gods intervened, leading to his release.