Somebody has told earlier that time is the property of the universe that God created. Now, humans link time with rotation and revolution of earth and they define the concept of day and year. At the end of the day, nobody is feeling the lose a day from life; same in case of a week as well as month.
But, when it comes to the case of year, people bid farewell to the moments they spent in an entire year. Reason may be missing feeling due to a huge interval of time or summation of age, what else could it be!