The voyage duration window allows the departure date and time to be set for the voyage together with 'In Port' time, average speed and a percentage adjustment for Weather to be applied.

The values displayed and available to be edited are either those for the entire voyage if the first row of the Voyage Legs list is selected, or those for a specific Leg if one of the subsequent rows is selected.

If a voyage has previously been calculated, changes to these settings affect the voyage ETAs as they are made.

Speed and Weather Factor can either be adjusted using the up/down spin buttons or simply by typing the desired value.

The date / time control will make an attempt to determine the date being entered without explicitly entering the full date and time. In the example on the left, by simply entering '1' the control 'suggests' a date of the 1st of the month and year previously displayed. It is not necessary to use a leading zero but doing so has the same effect.

The date and time can also be selected by clicking the 'Calendar' button at the right of the control.