The London Children's Museum is closed on Mondays. August 11, 2025 12:00 am to 11:59 pm August 18, 2025 12:00 am to 11:59 pm August 25, 2025 12:00 am to 11:59 pm September 8, 2025 12:00 am to 11:59 pm September 22, 2025 12:00 am to 11:59 pm September 29, 2025 12:00 am to 11:59 pm