---
id: "P:cAlgo.API.CustomSymbolMarketHours.Holidays"
kind: "property"
type: "T:cAlgo.API.CustomSymbolMarketHours"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Symbol/Custom/CustomSymbolMarketHours/Holidays/"
---

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

# CustomSymbolMarketHours.Holidays

Member of [CustomSymbolMarketHours](https://help.ctrader.com/ctrader-algo/references/Plugin/Symbol/Custom/CustomSymbolMarketHours/index.md).

## Holidays

Collection of all symbol's trading holidays

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
ICollection<CustomSymbolTradingHoliday> Holidays {get;}
```

Python:

```python
customSymbolMarketHours.Holidays: Sequence[CustomSymbolTradingHoliday]
```

### Returns

`ICollection<CustomSymbolTradingHoliday>` — 

Available since cAlgo.API 5.3.

### Examples

C#:

```csharp
var customSymbol = CustomSymbols.Add("MYEURUSD", Symbols.GetSymbol("EURUSD"));
customSymbol.MarketHours.Holidays.Add(new CustomSymbolTradingHoliday("Christmas", new DateTime(2025, 12, 25), new DateTime(2025, 12, 26), true));
foreach (var holiday in customSymbol.MarketHours.Holidays)
    Print("Holiday: {0} from {1} to {2}", holiday.Name, holiday.StartTime, holiday.EndTime);
```

Python:

```python
from System import DateTime
customSymbol = api.CustomSymbols.Add("MYEURUSD", api.Symbols.GetSymbol("EURUSD"))
customSymbol.MarketHours.Holidays.Add(CustomSymbolTradingHoliday("Christmas", DateTime(2025, 12, 25), DateTime(2025, 12, 26), True))
for holiday in customSymbol.MarketHours.Holidays:
    api.Print(f"Holiday: {holiday.Name} from {holiday.StartTime} to {holiday.EndTime}")
```