57 lines
1.1 KiB
Markdown
57 lines
1.1 KiB
Markdown
---
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title: date.monthDay() function
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description: >
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The `date.monthDay()` function returns the day of the month for a specified time.
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Results range from `[1-31]`.
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aliases:
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- /influxdb/v2.0/reference/flux/functions/date/monthday/
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- /influxdb/v2.0/reference/flux/stdlib/date/monthday/
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- /influxdb/cloud/reference/flux/stdlib/date/monthday/
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menu:
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flux_0_x_ref:
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name: date.monthDay
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parent: date
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weight: 301
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introduced: 0.37.0
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---
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The `date.monthDay()` function returns the day of the month for a specified time.
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Results range from `[1-31]`.
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```js
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import "date"
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date.monthDay(t: 2019-07-17T12:05:21.012Z)
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// Returns 17
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```
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## Parameters
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### t {data-type="time, duration"}
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The time to operate on.
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Use an absolute time, relative duration, or integer.
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Durations are relative to `now()`.
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## Examples
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##### Return the day of the month for a time value
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```js
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import "date"
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date.monthDay(t: 2020-02-11T12:21:03.293534940Z)
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// Returns 11
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```
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##### Return the day of the month for a relative duration
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```js
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import "date"
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option now = () => 2020-02-11T12:21:03.293534940Z
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date.monthDay(t: -8d)
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// Returns 3
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```
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