To follow up my post above:

Working class or labor groups or individual workers are working in a 5 day or 6 day work cycle depending on what company or institution or geographical locations. Banking transactions are quite unease to global workforce because at the same day(s) banking holidays are during time-off of working class. How could you make financial transactions if banks were closed? You might well answer this by “do your transactions during banking days” but this may diminish the possible revenues of a worker and a possibility of income will be diminish as well and it depends on your company if they’ll cut hours during your absence at work place. As of 2012 global workforce was around 2 billion, equivalent to 96 billion work hours production loss. Assume workforce cost per hour is $1.5 and this will amount to $144 billion that may solve the world hunger.