Since humans have been able to take note of the sun rising and setting we have found ways to measure time, distance and the temperature of the world. Time out of these is the most abstract, as distance and temperature are physical changes in the environment, time can pass differently from person to person. Try looking at a clock for one minute, it feels very slow right? However, during summer vacation, the days seem to go by so fast that they almost blend together. The less you notice the passage of time, the faster it goes. In dreams, hour pass by in a few minutes in “real time”. The idea of time being a concept specific to one individual is shown very well in The Spot on the Wall, where a simple action of staring at a mark on the wall which in real time takes maybe a few minutes tops, is stretched out over what feels like hours, as she uses the dot to anchor herself as she jumps to different aspects of society, such as the rank of women in society and a need to feel balanced. A classic example of time being relative is The Chronicles of Narnia where the children spend what feels like entire lifetimes in the imaginary world within the wardrobe when actuality they were gone not even a day.
The concept of time being an internal concept rather than external was coined during the period of Modernist Literature which lasted from 1915 through the 1950’s and made literature about very simple aspects of everyday life. Again, The Mark on the Wall is an example of that, the simple normal event of contemplating what a mark you see on a wall is. Modernism made literature once again about the common man and common things, rather than the extravagant tales of the past.