Seasons can be set for the flight schedule and vacations. You can access it under Editors - Calendar.

Before the user can work in the Schedule Gantt (Creating flights, inserting Maintenance checks etc), there must be a defined season.
This is what the user will see when trying to create a new flight schedule, if they have not first defined a season:

Click the New button to create a new season. Alternatively, the user can use the COPY button to duplicate an existing season.

Field Descriptions

| Name | This is a mandatory field. |
| Shortcode | This is a mandatory field. |
| Type | This is the season type. |
| Start / End | The length of the season. |
| Data Input Start / End | The data input period. |
| Planning Start / End | The planning period where the schedule has not been published. |
| Publish Date | The date when the season is published (release of SSIM file) |
| Archive Date | The date when the season is archived and closed for changes. |
| Generate IATA Seasons | This option will auto generate 10 years of IATA seasons based on the last Sunday in March and October. |
| SAVE button | The new season is added to the list. |
Note: The Data/Planning/Publish fields do not have any effect on N-OC functionality. They are intended more for information purposes for the user.