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date.add() function

content/flux/v0/stdlib/date/add.md

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<!------------------------------------------------------------------------------ IMPORTANT: This page was generated from comments in the Flux source code. Any edits made directly to this page will be overwritten the next time the documentation is generated. To make updates to this documentation, update the function comments above the function definition in the Flux source code: https://github.com/influxdata/flux/blob/master/stdlib/date/date.flux#L744-L744 Contributing to Flux: https://github.com/influxdata/flux#contributing Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md ------------------------------------------------------------------------------->

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

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

d

({{< req >}}) Duration to add.

to

({{< req >}}) 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

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