Verified hours — varies by day, has closures
Whole castle closed 29–31 December. Ninomaru-goten Palace closed every Tuesday in January, July, August and December (opening the following day instead if that Tuesday is a public holiday), plus 26–28 December and 1–3 January. Honmaru-goten Palace closed the third Monday of each month and the following day (opening instead if that Monday is a public holiday), plus 26–28 December and 1–3 January.