Fellow steemers! First of all, it is not that date(like dating someone....:D)
The story starts from International Date Line i.e. 180th Meridian.
It is an imaginary line basically one of the meridians which divide world into different time zones.
It passes through Fuiji Island at one point. YOU CROSS THE LINE AND YOU ENTER ANOTHER DAY.!
Here is the image:
The island is worth visiting,.... If you can