Revit 2025 API
Sun |
Identifies the start or current date and time.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
public DateTime StartDateAndTime { get; set; }
Public Property StartDateAndTime As DateTime Get Set
public: property DateTime StartDateAndTime { DateTime get (); void set (DateTime value); }
member StartDateAndTime : DateTime with get, set
Property Value
DateTimeThe date and time. The output value will be in Coordinated Universal Time (UTC), but input may be in local time as well.

Exception | Condition |
---|---|
ArgumentException | When setting this property: Revit does not accept input DateTime objects if they are of kind DateTypeKind.Unspecified. |

This property represents the start time for a single-day or multi-day study, or the current time
for a still sun study. Note that Revit may ignore this value if the SunriseToSunset flag is set.
See Also