Intl.DateTimeFormat Checker
Locale
Datetime
Seconds
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Reset
{
}
dateStyle
timeStyle
calendar
dayPeriod
numberingSystem
localeMatcher
timeZone
hour12
hourCycle
formatMatcher
weekday
era
year
month
day
hour
minute
second
fractionalSecondDigits
timeZoneName
:
full
long
medium
short
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