Tomorrow is Today, a film from Nikolaj Recke, shows the effect of sitting at the date line:
The video show two parallel projections, one from each side of the date line, thus conceptually creating a visual space where you can simultaneously perceive two days; a space that does not exists in physical reality and a space where there are principally no todays, just yesterdays and tomorrows.
More on historical perspectives on the dateline from Magellan to Poe to Socrates.
