All purposes. When laytime can be added together by the Charterer for loading and discharging operations as if one total time is specified to cover both operations, this is “reversible laytime” and is referred to as the number of days. far all purposes In a laytime calculation based on reversible laytime a specific clause must the charterer the option and the charterer must exercise the option after declaring that he is doing so.
Alternatively, some conduct of his may imply that he does not wish to exercise the option. An example of the latter situation would be where a charterparty contains the option to reverse laytime but the charterer claims and receives despatch at the loading port if the loading operations are completed before the laytime expires.
The expression “all purposes” should not be taken to refer to periods used which are exceptions to laytime, such as Sundays and Holidays.