docs-v2/content/flux/v0.x/stdlib/date/subduration.md

title	description	menu	weight	flux/v0.x/tags	related	introduced
date.subDuration() function	`date.subDuration()` subtracts a duration from a time value and returns the resulting time value.	flux_0_x_ref name parent date.subDuration date	302	date/time	/flux/v0.x/stdlib/date/addduration/	0.162.0

date.subDuration() subtracts a duration from a time value and returns the resulting time value.

import "date"

date.subDuration(d: 12h, from: now())

Parameters

d

Duration to subtract.

from

Time to subtract the duration from. Use an absolute time or a relative duration. Durations are relative to now().

Examples

Subtract six hours from a timestamp

import "date"

date.subDuration(d: 6h, from: 2019-09-16T12:00:00Z)

// Returns 2019-09-16T06:00:00.000000000Z

Subtract six hours from a relative duration

import "date"

option now = () => 2022-01-01T12:00:00Z

date.subDuration(d: 6h, from: -3h)

// Returns 2022-01-01T03:00:00.000000000Z