The difference between the duration of day and night is hardly felt at _________________.
The Earth's axial tilt is responsible for seasons. During summer in the northern hemisphere the sun will shine more directly on the northern hemisphere and less on the southern hemisphere (where it is winter).
As the Earth orbits the sun the axial tilt remains the same thus 6 months later it will shine more on the southern hemisphere therefore it will be winter in the northern hemisphere. In winter there will be less daylight hours and in summer there will be more.
As a result of the Earth's axial tilt, Equatorial countries like sinapore (1° 17′ 0″ N) do not really experience seasons. No matter what time of year they will still receive the same amount of sunlight hence roughly 12 daylight hours per day.