# timeSinceStartup

> The time since the editor was started. (Read Only)

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public static double timeSinceStartup { get; }
```

### Remarks

This property contains the time since the editor was started, in seconds. Unlike [Time.realtimeSinceStartup](/engine/6000.0/script-reference/unityengine/time/realtimesincestartup.md), this is not reset when starting play mode.

Additional Resources: [Time.realtimeSinceStartup](/engine/6000.0/script-reference/unityengine/time/realtimesincestartup.md)

![SimpleAutoSave (timeSinceStartup)](/api/media?file=/engine/6000.0/media/images/SimpleAutoSave.png)

*Simple Editor Window that saves each 300 seconds the current Scene.*

### Examples

```csharp
// Simple editor window that autosaves the working Scene
// Make sure to have this window opened to be able to execute the auto save.

using UnityEngine;
using UnityEditor;
using UnityEngine.SceneManagement;
using UnityEditor.SceneManagement;

public class SimpleAutoSave : EditorWindow
{
    static float saveTime = 300.0f;
    static double nextSave = 0;

    static int autoSaveLabel = 1;

    [MenuItem("Examples/Simple autoSave")]
    static void Init()
    {
        SimpleAutoSave window = (SimpleAutoSave)GetWindowWithRect(
            typeof(SimpleAutoSave),
            new Rect(0, 0, 160, 60));
        window.Show();
    }

    void OnGUI()
    {
        EditorGUI.LabelField(new Rect(10, 10, 80, 20), "Save Each:");
        EditorGUI.LabelField(new Rect(80, 10, 80, 20), saveTime + " secs");

        double timeToSave = nextSave - EditorApplication.timeSinceStartup;


        EditorGUI.LabelField(new Rect(10, 30, 80, 20), "Next Save:");
        EditorGUI.LabelField(new Rect(80, 30, 80, 20), timeToSave.ToString("N1") + " secs");

        this.Repaint();

        // when time has reach zero then save the Scene
        if (EditorApplication.timeSinceStartup > nextSave)
        {
            Scene scene = SceneManager.GetActiveScene();
            string name = scene.name + autoSaveLabel;

            EditorSceneManager.SaveScene(scene, "Assetswibble" + name + ".unity", true);
            autoSaveLabel = autoSaveLabel + 1;
            nextSave = EditorApplication.timeSinceStartup + saveTime;

            Debug.Log("Saved Scene: " + name);
        }
    }
}
```