Application of variation 1

True North is the direction towards the Geographic North Pole.
On a nautical chart, all lines of longitude are aligned to the True North.
Magnetic North is the direction towards the Magnetic North Pole.
The angular difference between True North and Magnetic North is called the Magnetic Variation, which changes very slightly each year and varies at different locations on earth.
Magnetic Variation is listed on the chart as east or west.
When variation is listed as east, then the Magnetic North is east of the True North and when variation is listed as west, the Magnetic North is west of the True North.