| Property | Options |
|---|---|
| dateStyle | full long medium short |
| timeStyle | full long medium short |
| calendar | gregory chinese hebrew indian islamic ... |
| dayPeriod | narrow short long |
| numberingSystem | arab latn fullwide ... |
| localeMatcher | lookup best fit |
| timeZone | IANA time zone name |
| hour12 | true false |
| hourCycle | h11 h12 h23 h24 |
| formatMatcher | basic","best fit" |
| weekday | long short narrow |
| era | long short narrow |
| year | numeric 2-digit |
| month | numeric 2-digit long short narrow |
| day | numeric 2-digit |
| hour | numeric 2-digit |
| minute | numeric 2-digit |
| second | numeric 2-digit |
| fractionalSecondDigits | 0 1 2 3 |
| timeZoneName | long short shortOffset longOffset shortGeneric longGeneric |