It is first necessary to establish what, precisely, is being asked by that question, since most casual answers are actually responding to the perceived question ‘how is time measured,’ and not to the actual question ‘what is time’.
Literary Murder
If you've been writing for awhile, you've probably reached a point in a story where you've had to kill off a character. I don't mean a minor character or a world character who pretty much exists just to die on a main character's sword - I mean a point where the plot and the characterization and the whole story demand that a character you have worked with and developed and followed through thousands of words must die. Maybe you knew this was something that would have to happen from the time you started writing the story, or maybe it was something you weren't expecting before you reached the scene and realized there was no other good choice. Regardless, it's never an easy thing.
IGC Publishing 