temporal-polyfill 0.3.0 on Node.js NPM

Updated to March 2025 version of Temporal spec (#47). Including but not limited to:
- timeZones can ONLY be strings; no longer accepts custom objects
- calendars can ONLY be strings; no longer accepts custom objects
- Temporal.TimeZone class removed; most functionality exists on Temporal.ZonedDateTime
  - Added zonedDateTime.getTimeZoneTransition()
- Temporal.Calendar class removed; all functionality exists on Plain/Zoned types
- .getISOFields() methods removed on all Plain/Zoned types
- Better conformance for Intl.DateTimeFormat
- Many removals, with alternatives:

// Temporal.Now

❌ Temporal.Now.zonedDateTime(calendar)
✅ Temporal.Now.zonedDateTimeISO().withCalendar(calendar)

❌ Temporal.Now.plainDateTime(calendar)
✅ Temporal.Now.plainDateTimeISO().withCalendar(calendar)

❌ Temporal.Now.plainDate(calendar)
✅ Temporal.Now.plainDateISO().withCalendar(calendar)

// Temporal.Instant

❌ Temporal.Instant.fromEpochSeconds(seconds)
✅ Temporal.Instant.fromEpochMilliseconds(seconds * 1000)

❌ Temporal.Instant.fromEpochMicroseconds(micro)
✅ Temporal.Instant.fromEpochNanoseconds(micro * 1000n)

❌ instant.epochSeconds
✅ instant.epochMilliseconds / 1000

❌ instant.epochMicroseconds
✅ instant.epochNanoseconds / 1000n

❌ instant.toZonedDateTime()
✅ instant.toZonedDateTimeISO().withCalendar(cal)

// Temporal.ZonedDateTime

❌ zonedDateTime.epochSeconds
✅ zonedDateTime.epochMilliseconds / 1000

❌ zonedDateTime.epochMicroseconds
✅ zonedDateTime.epochNanoseconds / 1000n

❌ zonedDateTime.withPlainDate(plainDate)
✅ plainDate.toZonedDateTime({
     plainTime: zonedDateTime,
     timeZone: zonedDateTime.timeZone,
   })

❌ zonedDateTime.toPlainYearMonth()
✅ zonedDateTime.toPlainDate().toPlainYearMonth()

❌ zonedDateTime.toPlainMonthDay()
✅ zonedDateTime.toPlainDate().toPlainMonthDay()

// Temporal.PlainDateTime

❌ plainDateTime.toPlainYearMonth()
✅ plainDateTime.toPlainDate().toPlainYearMonth()

❌ plainDateTime.toPlainMonthDay()
✅ plainDateTime.toPlainDate().toPlainMonthDay()

❌ plainDateTime.withPlainDate(plainDate)
✅ plainDate.toPlainDateTime(plainDateTime)

// Temporal.PlainTime

❌ plainTime.toPlainDateTime(plainDate)
✅ plainDate.toPlainDateTime(plainTime)

❌ plainTime.toZonedDateTime({ plainDate, timeZone })
✅ plainDate.toZonedDateTime({ plainTime, timeZone })

Learn more about these breaking changes »