i WAs wondering in terms of jet lag what is it like crossing the international date line?

Crossing the international date line doesnt make things any worse than if you were flying from say LHR-SYD for example. Its the loong hours in the air combined with the huge time changes on the ground that throws out your body clock. Best way to combat it, especially when flying west to east, is to set your watch to the local time at your destination and act according to that time. Crossing the international date line means you simply change from sunday to monday or vise versa. Since dates and names of days are a human thing and not a natural thing, it doesnt complicates things as much as confusing the body clock.

It depends on whether you have slept on the plane and which way you travelled - east to west is always best, but flying from NZ to SF is west to east which makes most people feel worse. The important thing to do is to try to sleep during the night of the country you are going to and then stay up till say 9pm on the day you arrive. If you go to bed at that time you will have acclimatised more quickly and you should be OK the next day. The international date line has nothing to do with it really - your journey time Auckland to SF will be about 13 hours or so which is the same as flying London to Singapore and you would feel the same on either flight.

Technically speaking it does pass with the aid of land, the Antarctic. although because of the fact that isn't any longer completely inhabited there's no real situation. No u . s . a . might want its people functioning their on a regular basis lives on 2 distinctive dates. think of the chaos whilst some people interior the rustic are on Sat. April 21 together as their buddy are already on Sunday. think of the government attempting to run the rustic. For reasons like the above the dateline strikes around the worldwide places so as that each and every u . s . a . would be all one time. So around the jap fringe of Russia it is going, keeps to the west of Alaska so the the State would be in sink with something of the U.S. The islands of Kiribati, interior the Pacific, use to have the dateline going good in the process the middle of them and by surprise met issues so that they moved the dateline approximately 15-twenty years in the past. There are no longer any treaties or any formal agreements correct to the IDL. that is in user-friendly terms a worldwide settlement so worldwide places are unfastened to make judgements correct to the dateline themselves.