---
title: boundaries.month() function
description: >
  `boundaries.month()` returns a record with `start` and `stop` boundary timestamps for the current month.
menu:
  flux_v0_ref:
    name: boundaries.month
    parent: experimental/date/boundaries
    identifier: experimental/date/boundaries/month
weight: 301
flux/v0/tags: [date/time]
introduced: 0.177.1
---

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`boundaries.month()` returns a record with `start` and `stop` boundary timestamps for the current month.

`now()` determines the current month.

##### Function type signature

```js
(?month_offset: int) => {stop: time, start: time}
```

{{% caption %}}
For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
{{% /caption %}}

## Parameters

### month_offset

Number of months to offset from the current month. Default is `0`.

Use a negative offset to return boundaries from previous months.
Use a positive offset to return boundaries for future months.


## Examples

- [Return start and stop timestamps for the current month](#return-start-and-stop-timestamps-for-the-current-month)
- [Query data from this month](#query-data-from-this-month)
- [Query data from last month](#query-data-from-last-month)

### Return start and stop timestamps for the current month

```js
import "experimental/date/boundaries"

option now = () => 2022-05-10T10:10:00Z

boundaries.month(

)// Returns {start:2022-05-01T00:00:00.000000000Z, stop:2022-06-01T00:00:00.000000000Z}


```


### Query data from this month

```js
import "experimental/date/boundaries"

thisMonth = boundaries.month()

from(bucket: "example-bucket")
    |> range(start: thisMonth.start, stop: thisMonth.stop)

```


### Query data from last month

```js
import "experimental/date/boundaries"

lastMonth = boundaries.month(month_offset: -1)

from(bucket: "example-bucket")
    |> range(start: lastMonth.start, stop: lastMonth.stop)

```