> For the complete documentation index, see [llms.txt](https://docs.lenses.io/latest/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lenses.io/latest/connectors/single-message-transforms/insertwallclockdatetimepart.md).

# InsertWallclockDateTimePart

A Kafka Connect Single Message Transform (SMT) that inserts the system clock year, month, day, minute, or seconds as a message header, with a value of type STRING.

{% hint style="success" %}
Use [InsertWallclockHeaders ](/latest/connectors/single-message-transforms/insertwallclockheaders.md)SMT if you want to use more than one date time part. This avoids multiple SMTs and is more efficient.

For example, if you want to partition the data by **`yyyy-MM-dd/HH`**, then you can use **`InsertWallclockHeaders`** which inserts multiple headers: date, year, month, day, hour, minute, second.
{% endhint %}

## Transform Type Class

```
io.lenses.connect.smt.header.InsertWallclockDateTimePart
```

## Configuration

<table><thead><tr><th width="194">Name</th><th width="132">Description</th><th>Type</th><th width="66">Default</th><th width="121">Valid Values</th><th>Importance</th></tr></thead><tbody><tr><td><code>header.name</code></td><td>The name of the header to insert the timestamp into.</td><td>String</td><td></td><td></td><td>High</td></tr><tr><td><code>date.time.part</code></td><td>The date time part to insert.</td><td>String</td><td></td><td>year, month, day, hour,minute, second</td><td>High</td></tr><tr><td><code>timezone</code></td><td>Sets the timezone. It can be any valid java timezone.</td><td>String</td><td>UTC</td><td></td><td>High</td></tr></tbody></table>

## Example

To store the year, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=year
```

To store the month, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=month
```

To store the day, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=day
```

To store the hour, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=hour
```

To store the hour, and apply a timezone, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=hour
transforms.InsertWallclockDateTimePart.timezone=Asia/Kolkata
```

To store the minute, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=minute
```

To store the second, use the following configuration:

```properties
transforms=InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.type=io.lenses.connect.smt.header.InsertWallclockDateTimePart
transforms.InsertWallclockDateTimePart.header.name=wallclock
transforms.InsertWallclockDateTimePart.date.time.part=second
```


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