# ReferenceDay Property

## Overloads

| [ReferenceDay](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.ILocaleInfo.ReferenceDay.htm#Qlik_Engine_ILocaleInfo_ReferenceDay) |  | Day in the year that is always in week 1.<br><br>According to ISO 8601, January 4th should always be part of the first week of the year ( `qReferenceDay` =4).<br><br>Recommended values are in the range 1 and 7.<br><br>If this property has not been set in a script, the returned value comes from the Windows operating system.<br><br>This property is not relevant if there are broken weeks in the year.<br><br>JSON property name: qReferenceDay |
| --- | --- | --- |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.ILocaleInfo.ReferenceDay.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.ILocaleInfo.ReferenceDay.htm)

## ReferenceDay

Day in the year that is always in week 1.

According to ISO 8601, January 4th should always be part of the first week of the year ( `qReferenceDay` =4).

Recommended values are in the range 1 and 7.

If this property has not been set in a script, the returned value comes from the Windows operating system.

This property is not relevant if there are broken weeks in the year.

JSON property name: qReferenceDay

### Declaration

```

          int ReferenceDay { get; set; }
    
  
```

### Property Value

| Type | Description |
| --- | --- |
| System.Int32 |  |