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date.yearDay() function

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

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date.yearDay() returns the day of the year for a specified time. Results can include leap days and range from [1 - 366].

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 day of the year for a time value

js
import "date"

date.yearDay(t: 2020-02-11T12:21:03.29353494Z)// Returns 42

Return the day of the year for a relative duration

js
import "date"

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

date.yearDay(t: -1mo)// Returns 276

Return the current day of the year

js
import "date"

date.yearDay(t: now())