night
night grows longer
A candle.
night
A candle. As it burns, it gets shorter in length but longer in wax height.
Hair grows longer every day.
the day grows shorter
A candle.
no it doesn't
a candle.
A candle.
None of the months are shorter, February is one day longer, as is the year.
One day is 86400 seconds, so it is shorter than 1 million seconds.