Nothing can exist without time. The world is working by the flow of time. Time cannot be stopped or classified, it is just streaming continuously. Such systems like seconds, days, and years are just made by humans for comfort. Time is endless but of an individual it is limited. This limitation is the requisite that makes life special.
Time cannot be neither defined nor decied by different characteristics. All the rulds and kinds of time are just made by human beings. Actually, the tiem during day and night are same. The only difference is that wheter humans on the earth can see sun or not. Even this definition is not absolute. All the humans consider the same time differently. For example, night time in Korea us day time in England. Length of day and night is different on every region Therfore, time cannot be explained absolutely.
Lifetiem is tiem allocated to and individual. This time is limited and such feature is an element that makes life valuable. Such time is like snad in a sandglass, i decreases continuously and with a fixed quantity but it ends at some point. This end is the thing that makes time so precious and makes our life active. This end is th thing that makes living creatures to develop and improve.