All works of literature contain some sort of theme. Themes are generally universal in nature, and relate to the condition of being human. Thus the theme in a work of literature crosses boundaries and makes a story meaningful to people to any culture or age.
Day length at the Equator. At latitude 0Â° (the Equator) day length will be approximately 12 hours. Areas on the Equator have a constant 12 hours of day light all year round.
However, a normal cycle can be shorter or longer than this. It may be anywhere from 21 to 35 days long. Most periods last 3 to 5 days, but anywhere from 2 to 7 days is normal. Menstrual cycles may happen around the same date every month or they may be irregular.