---
url: >-
  /statelake/scripting-reference/functions-and-procedures/datetime-functions/incday.md
---

# IncDay

**IncDay** returns the given date, incremented by the number of days given as the **ANumberOfDays** parameter.

**ANumberOfDays** can be negative, to return a date earlier by the specified number of days.

**Declaration**: Function IncDay(const AValue: TDateTime; const ANumberOfDays: Integer): TDateTime;

This is a simple example.

```pascal
procedure OnMapEvent(var Value:Variant);
begin
 //Returns a date incremented by 10 days
  Value := IncDay(Date, 10);
end;
```