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Day.js

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›Manipulate

Installation

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Parse

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  • String + Format
  • Unix Timestamp (milliseconds)
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Get + Set

  • Get + Set
  • Millisecond
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  • Get
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Manipulate

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  • Add
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  • UTC offset

Display

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  • Unix Timestamp (milliseconds)
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  • As Javascript Date
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Query

  • Query
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i18n

  • i18n
  • Loading locale in NodeJS
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  • Changing locale globally
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  • Checking the current Day.js locale
  • Listing the months and weekdays of the current locale
  • Accessing locale specific functionality

Plugins

  • Plugin
  • Loading plugin in NodeJS
  • Loading plugin in the browser
  • AdvancedFormat
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  • BuddhistEra
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  • DevHelper
  • Duration
  • IsBetween
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  • LocaleData
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Customize

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Durations

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  • Using Duration with Diff
  • As Unit of Time
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  • As JSON
  • Is a Duration
  • As ISO 8601 String
  • Locale

Time Zone

  • Time Zone
  • Parsing in Zone
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  • Guessing user zone
  • Set Default Timezone
Edit

UTC offset

Get the UTC offset in minutes.

dayjs().utcOffset()

Setting the UTC offset by supplying minutes and returns a new instance. Note that once you set an offset, it's fixed and won't change on its own (i.e there are no DST rules).

This requires the UTC plugin to work

dayjs.extend(utc)

dayjs().utcOffset(120)

If the input is less than 16 and greater than -16, it will interpret your input as hours instead.

// these are equivalent
dayjs().utcOffset(8)  // set hours offset
dayjs().utcOffset(480)  // set minutes offset (8 * 60)

Passing true to the second parameter will keep the same local time.

dayjs.utc('2000-01-01T06:01:02Z').utcOffset(1, true).format() 
// 2000-01-01T06:01:02+01:00
← UTCDisplay →
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