---
id: "P:cAlgo.API.BacktestingDataRequest.StartTime"
kind: "property"
type: "T:cAlgo.API.BacktestingDataRequest"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Backtesting/DataSource/BacktestingDataRequest/StartTime/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# BacktestingDataRequest.StartTime

Member of [BacktestingDataRequest](https://help.ctrader.com/ctrader-algo/references/Plugin/Backtesting/DataSource/BacktestingDataRequest/index.md).

## StartTime

Gets request start time.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Available to plugins only, and plugins cannot run in the CLI.
- Cloud: Available to plugins only, and plugins cannot run in the cloud.

C#:

```csharp
DateTime StartTime {get;}
```

Python:

```python
backtestingDataRequest.StartTime: DateTime
```

### Returns

`DateTime` — 

Available since cAlgo.API 5.3.

### Examples

C#:

```csharp
private void OnDataRequested(BacktestingDataRequest request)
{
    Print("Data requested starting from {0:u}", request.StartTime);
}
```

Python:

```python
def on_data_requested(self, request):
    api.Print(f"Data requested starting from {request.StartTime}")
```