GEORGIA PEACH and CHATEAU, your deductions about the length of the equator day are right on. However, the reverse is true in Tierra del Fuego and Patagonia where the summer days are long. With Ushuaia just shy of 55 degrees south and Punta Arenas at just more than 53 degrees south, you are talking about the equiavent of Akimiski Island in the James Bay outlet of Hudson Bay and Cape Muzon, the southernmost extension of the southeast part of Alaska. I haven't found tables for them yet (and might not), but we are talking less than one month shy of their summer solstice. I would guess it would be about 18 hours of light.