Visiting the Taj Mahal is one thing and watching it gleam under the light of a full moon is another altogether. A night tour of the marble mausoleum is available on five nights every month, including the night on which the full moon appears and two nights before and after its appearance. The Archaeological Survey of India (ASI) sells tickets for these tours 24 hours before they commence, although a tentative list of dates is available on the official government website of the Taj Mahal. The viewing tour takes place between 8.30 pm and 12.30 am in a series of batches, each batch comprising about 50 people, who get to behold the monument in all its moonlit glory for about 30 minutes. The number of people allowed to visit within one night is around 400. Visitors are required to reach the assembling venue half an hour before their slot, at the Shilpgram complex. This is located near the eastern gate of the Taj Mahal. Entry inside the monument is not allowed at night, and visitors can view it only from a distance. Bags and mobile phones are not allowed on these night tours, albeit cameras are, but only for still photography. There are no night tours organised on Fridays or during the holy month of Ramadan. The calendars mentioning the full moon dates are released well in advance and since these follow astrological signs, it should be kept in mind that they may vary.