|Days count in several date spans|
The calculator gives total number of days in date span list. Each date span is defined by start date and end date. The calculator can exclude multiple date date span intersections.
|Timeline Midnight Converter|
This calculator accepts the length of a period, as well as the length of the whole timeline. It then converts the length of the period into minutes to midnight, related to the whole timeline as if it took place over the course of a single day.