# DateTrunc

Truncates (rounds) a datetime to the specified precision

```mathematica
DateTrunc("2022-01-19 20:00:00", DateValueOption.MONTH) → 2022-01-01 00:00:00
DateTrunc("2022-10-28 20:00:00.000", DateValueOption.YEAR) → 2022-01-01 00:00:00.000
```

#### Inputs

`DateTrunc(dateTime, datePart)`

* `dateTime` - Date, time, or datetime value
* `datePart` - This indicates the units of time that you want to add, ex. DateValueOption.MONTH