In recent years the excellent Natural History Museum in South Kensington has discovered that there are indeed 24 hours in the day, and at various times now organises special events to take full advantage of them.
In other words, it keeps its doors open well into the evening these days – and sometimes overnight – though for these popular night time gatherings you need to book in advance.
Coming up on 8th April is its next Night Safari, an event which gives visitors the unique opportunity to explore the museum's famous Central Hall and adjoining galleries in relative peace, as the crowds from the daytime will have been gently ushered away by sundown.
The popular Night Safari event includes a chance to meet a number of scientists invited along to talk about their work and introduce a variety of their favourite specimens to the attendees.
The three-hour event, open to those over 16, ends with a bit of bar-based chit-chat, with the visiting scientists more than happy to discuss matters of the natural world over a pint of beer or glass of orange juice.
Tickets cost £28 for non-members and £25 for members – not cheap, but for three hours inside one of the country's best museums in a special atmosphere you can't find in the daytime, it should be well worth it.