What does Fixed Duration mean on CalculationTime?
The time unit converter uses fixed duration arithmetic. Calendar deadlines, workdays and time zones stay in separate tools because they carry extra assumptions.
Glossary term
Fixed Duration
A fixed duration is a pure elapsed-time amount such as seconds, minutes, hours, days or weeks, without calendar-month or daylight-saving rules.
History of the term
Fixed time units became dependable once civil timekeeping separated clock duration from calendar date rules, leap days and local time zones.