---
title: date.add() function
description: date.add() adds a duration to a time value and returns the resulting time value.
url: https://docs.influxdata.com/flux/v0/stdlib/date/add/
estimated_tokens: 1539
product: Flux
version: v0
---

# date.add() function

-   Flux 0.162.0+
-   View InfluxDB support

`date.add()` adds a duration to a time value and returns the resulting time value.

##### Function type signature

```js
(d: duration, to: A, ?location: {zone: string, offset: duration}) => time where A: Timeable
```

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

## Parameters

### d

(Required) Duration to add.

### to

(Required) Time to add the duration to.

### location

Location to use for the time value.

Use an absolute time or a relative duration. Durations are relative to `now()`.

## Examples

-   [Add six hours to a timestamp](#add-six-hours-to-a-timestamp)
-   [Add one month to yesterday](#add-one-month-to-yesterday)
-   [Add six hours to a relative duration](#add-six-hours-to-a-relative-duration)

### Add six hours to a timestamp

```js
import "date"

date.add(d: 6h, to: 2019-09-16T12:00:00Z)// Returns 2019-09-16T18:00:00.000000000Z

```

### Add one month to yesterday

A time may be represented as either an explicit timestamp or as a relative time from the current `now` time. add can support either type of value.

```js
import "date"

option now = () => 2021-12-10T16:27:40Z

date.add(d: 1mo, to: -1d)// Returns 2022-01-09T16:27:40Z

```

### Add six hours to a relative duration

```js
import "date"

option now = () => 2022-01-01T12:00:00Z

date.add(d: 6h, to: 3h)// Returns 2022-01-01T21:00:00.000000000Z

```

#### Related

[date/time](/flux/v0/tags/date/time/)