809. Your longitude is 179°59'W. The LMT at this longitude is 23h 56m on the 4th day of the month. Six minutes later, your position is 179°59'E longitude. What is your LMT and date?

Crossing the International Date Line westbound advances the date by one day. Adding six minutes to the initial LMT of 23h 56m results in 00h 02m on the 5th; crossing the date line then advances the date to the 6th, yielding a final LMT of 00h 02m on the 6th.