# llGetRegionTimeDilation

*LSL function*

```lsl
float float llGetRegionTimeDilation();
```

- Returns: `float`
- Energy: 10

It is used as the ratio between the change of script time to that of real world time.

Returns a [float](https://wiki.secondlife.com/wiki/float) that is the current time dilation, the value range is \[0.0, 1.0\], 0.0 (full dilation) and 1.0 (no dilation).

```lsl title="How to use" frame="terminal"
float result = llGetRegionTimeDilation();
```

## Specification

Time dilation is a method the server uses to cope with simulator lag. Physics and script generated lag can result in time dilation. Time dilation slows script time & execution. When time dilation is zero script execution halts.

##### Affects

- Intervals of [sensor](/events/sensor/) events queued as a result of [llSensorRepeat](/functions/llSensorRepeat/).

## Caveats

- [Region idling](http://community.secondlife.com/t5/Second-Life-Server/Region-Idling-FAQ/m-p/1535497) lowers a region's framerate when no avatars are currently on or looking into the region. Scripts measuring time dilation with `llGetRegionTimeDilation` may report significant time dilation if the region is [idle](/functions/llGetEnv/).

## Examples

<details open>
<summary>Example 1</summary>

```lsl collapse={1-19}
// The beginnings of a region-info script.
string region;
string sim;

default
{
    state_entry()
    {
        llSetTimerEvent(1.0);
    }
    timer()
    {
        string here = llGetRegionName();
        if(region != here)
        {
            sim = llGetSimulatorHostname();
            region = here;
        }
        llSetText(
                "   REGION NAME : " + region +
              "\n  SIM HOSTNAME : " + sim +
              "\n TIME DILATION : " + (string)llGetRegionTimeDilation() +
              "\n    REGION FPS : " + (string)llGetRegionFPS(),
            <0,1,0>, 1.0);
    }
}
```

</details>

## See also

### Functions

- [llGetRegionFPS](/functions/llGetRegionFPS/)
- [llGetTime](/functions/llGetTime/)
- [llGetAndResetTime](/functions/llGetAndResetTime/)

---

*Source: [LlGetRegionTimeDilation](https://wiki.secondlife.com/wiki/LlGetRegionTimeDilation) on the Second Life Wiki. Content from the Second Life Wiki article LlGetRegionTimeDilation (revision 1218444, 2025-08-30), CC BY-SA 3.0.*

---

From lsl.dev: https://lsl.dev/functions/llGetRegionTimeDilation/