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date.hour() function

content/flux/v0/stdlib/date/hour.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#L188-L188 Contributing to Flux: https://github.com/influxdata/flux#contributing Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md ------------------------------------------------------------------------------->

date.hour() returns the hour of a specified time. Results range from [0 - 23].

Function type signature
js
(t: A, ?location: {zone: string, offset: duration}) => int where A: Timeable

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

Parameters

t

({{< req >}}) Time to operate on.

Use an absolute time, relative duration, or integer. Durations are relative to now().

location

Location used to determine timezone. Default is the location option.

Examples

Return the hour of a time value

js
import "date"

date.hour(t: 2020-02-11T12:21:03.29353494Z)// Returns 12

Return the hour of a relative duration

js
import "date"

option now = () => 2020-02-11T12:21:03.29353494Z

date.hour(t: -8h)// Returns 7

Return the current hour

js
import "date"

date.hour(t: now())

Return the hour in local time

js
import "date"
import "timezone"

date.hour(t: r._time, location: timezone.location(name: "Europe/Berlin"))