docs-v2/content/flux/v0/stdlib/date/yearday.md

title	description	menu	weight
date.yearDay() function	`date.yearDay()` returns the day of the year for a specified time. Results can include leap days and range from `[1 - 366]`.	flux_v0_ref name parent identifier date.yearDay date date/yearDay	101

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

(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
• Return the day of the year for a relative duration
• Return the current day of the year

Return the day of the year for a time value

import "date"

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

Return the day of the year for a relative duration

import "date"

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

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

Return the current day of the year

import "date"

date.yearDay(t: now())