Function DayWithinYear

packages/ecma262-abstract/DateOperations.ts:36–38

(t: number)

}

export function DayWithinYear(t: number): number {
  return Day(t) - DayFromYear(YearFromTime(t))
}

export function InLeapYear(t: number): 0 | 1 {
  return DaysInYear(YearFromTime(t)) === 365 ? 0 : 1