DOI link for Laytime—calculation
What constitutes a day needs to be made clear in order to avoid disputes. A working day is a day when normal working is carried out in a port. A working day of 24 hours is a period of time which contains 24 normal working hours. If it is the custom of a port that eight hours represents the normal working time per day, then a working day of 24 hours would be considered as three laydays. A working day of 24 consecutive hours equates to one layday. The word consecutive was introduced after it was ruled in court that a working day of 24 hours might be considered as more than one layday according to the length of normal working time each day in a port. Running days are consecutive calendar days of 24 hours including weekends and holidays.