---
id: "P:cAlgo.API.Internals.TradingSession.StartDay"
kind: "property"
type: "T:cAlgo.API.Internals.TradingSession"
url: "https://help.ctrader.com/ctrader-algo/references/MarketData/Symbols/TradingSession/StartDay/"
---

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

# TradingSession.StartDay

Member of [TradingSession](https://help.ctrader.com/ctrader-algo/references/MarketData/Symbols/TradingSession/index.md).

## StartDay

Day of week when trading session starts

Environments: Desktop supported · CLI supported · Cloud supported.

C#:

```csharp
DayOfWeek StartDay {get;}
```

Python:

```python
tradingSession.StartDay: DayOfWeek
```

### Returns

`DayOfWeek` — 

### Examples

C#:

```csharp
foreach (var session in Symbol.MarketHours.Sessions)
    Print("Session starts on {0}", session.StartDay);
```

Python:

```python
for session in api.Symbol.MarketHours.Sessions:
    api.Print(f"Session starts on {session.StartDay}")
```