Time is one of the trickiest subjects when writing a story. Not only does your world has to be convincing enough when writing fiction, the pass of time is something to keep in mind throughout the story. Depending on your story, you will have to keep track of the days that had gone by naturally, as the characters go about their lives – days, years, age, technology changes … It doesn’t matter if you are writing historical fiction or a modern romance, the pass of time is something to be aware of and keep track. If the protagonist went to work on Monday, and went to sleep that same day, but was meeting with someone on Wednesday, it would be unnatural to wake her up and take her to meet that person – where did Tuesday go? Another example is aging characters appropriately if the story demands it, as well as characters dealing with issues that are age related. In a series, time becomes tricky, and something to watch out for, as in the case of many years going by in the story, from the first book to the second book. You will have to age characters, but also technology in many cases. In addition, some people might not be able to come back because naturally they would be dead. I will use one of my novels as an example, and something I caught “on time” when writing it. It had to do with the pass of time – more than 20 years – and the mention of an aged character in the second book. In the first book, the character retained the title of Mayor, and referred to as Mayor Degan many times. In the second book, I caught myself referring to him as Mayor Degan, when he was at least 20 years older (no problem there, he was aged appropriately), however impossible to be retaining the title for that long. In my mind, the writer’s mind, he was still Mayor Degan, however I had to call him now by his name – Blake Degan. He was not even a character that interacted much throughout the story, but was a necessary one. Time affected even this character.
Supernatural characters might be able to play with time, but it still has to be mentioned in some way, as part of their condition, otherwise it might confuse the reader. Maybe they don’t age, or they can make themselves age according to time … somehow, the writer has to make this known to the reader.
Technology is another issue, not only in the topic of time, but on location as well. As an example, if internet connection is being used as part of the story, it is obvious that the internet speed is different in New York City than in a remote country location. These small details might not seem important, but they are.
The phrase “Time will tell” comes to mind.