Formatting date: DateTimeFormat
Intl.DateTimeFormat.prototype.formatIntl.DateTimeFormat.prototype.formatToPartsIntl.DateTimeFormat.prototype.formatRangeIntl.DateTimeFormat.prototype.formatRangeToPartsIntl.DateTimeFormat.prototype.resolvedOptions
Formatting date: Date
Date.prototype.toLocaleStringDate.prototype.toLocaleDateStringDate.prototype.toLocaleTimeString
Relative time format
Intl.RelativeTimeFormat.prototype.formatIntl.RelativeTimeFormat.prototype.formatToPartsIntl.RelativeTimeFormat.prototype.resolvedOptions
Formatting numbers: NumberFormat
Intl.NumberFormat.prototype.formatIntl.NumberFormat.prototype.formatToPartsIntl.NumberFormat.prototype.resolvedOptions
Formatting numbers: Number
Number.prototype.toLocaleString
String collation: Collator
Intl.Collator.prototype.compareIntl.Collator.prototype.resolvedOptions
String collation: Array
Array.prototype.sort
String collation: String
String.prototype.localeCompare
List format
Intl.ListFormat.prototype.formatIntl.ListFormat.prototype.formatToParts
Display names
Intl.DisplayNames.prototype.ofIntl.DisplayNames.prototype.resolvedOptions
Plural rules
Intl.PluralRules.prototype.selectIntl.PluralRules.prototype.resolvedOptions

Intl.DateTimeFormat.prototype.format

Formats a date according to the locale and formatting options of this Intl.DateTimeFormat object.

Set up your formatter

locales
dateStyle
timeStyle
calendar
dayPeriod
numberingSystem
localeMatcher
timeZone
hour12
hourCycle
formatMatcher
weekday
era
year
month
day
hour
minute
second
fractionalSecondDigits
timeZoneName
input

This is what you get …

8/21/2025

… if you call this code:

new Intl.DateTimeFormat(["en-US"], {}).format(
  new Date()
);

other locales

🇺🇸 en-US8/21/2025
🇨🇿 cs-CZ21. 8. 2025
🇧🇷 pt-BR21/08/2025
🇵🇱 pl-PL21.08.2025
🇲🇰 mk-MK8/21/2025
🇪🇪 et-EE21.8.2025
🇮🇹 it-IT21/08/2025
🇨🇦 en-CA2025-08-21
🇬🇧 en-GB21/08/2025
🇸🇰 sk-SK21. 8. 2025
🇵🇹 pt-PT21/08/2025
🇧🇦 bs-Latn-BA2025-08-21
🇷🇺 ru-RU21.08.2025
🇩🇪 de-DE21.8.2025
🇮🇪 en-IE21/8/2025
🇭🇷 hr-HR21. 08. 2025.