export declare const datetime: {
    isLeap: (year: string | number) => boolean;
    microsecondsPerMillisecond: number;
    microsecondsPerMs: number;
    usPerMs: number;
    usecondsPerMs: number;
    usPerMillisecond: number;
    usecondPerMillisecond: number;
    usecondsPerMillisecond: number;
    μPerMs: number;
    μsPerMs: number;
    μsecondsPerMs: number;
    μPerMillisecond: number;
    μsecondPerMillisecond: number;
    μsPerMillisecond: number;
    μsecondsPerMillisecond: number;
    msPerSec: number;
    millisecondsPerSecond: number;
    msPerSecond: number;
    msPerSeconds: number;
    millisecondsPerSec: number;
    msPerMinute: number;
    millisecondsPerMinute: number;
    msPerMin: number;
    millisecondsPerMin: number;
    msPerHour: number;
    millisecondsPerHour: number;
    msPerHr: number;
    millisecondsPerHr: number;
    msPerDay: number;
    millisecondsPerDay: number;
    msPerCommonYear: number;
    millisecondsPerCommonYear: number;
    msPerLeapYear: number;
    millisecondsPerLeapYear: number;
    secPerMin: number;
    secsPerMin: number;
    secondsPerMinute: number;
    secPerMinute: number;
    secsPerMinute: number;
    secPerHr: number;
    secsPerHr: number;
    secPerHour: number;
    secsPerHour: number;
    secondsPerHour: number;
    secondsPerHr: number;
    secPerDay: number;
    secsPerDay: number;
    secondPerDay: number;
    secondsPerDay: number;
    secPerWeek: number;
    secsPerWeek: number;
    secondPerWeek: number;
    secondsPerWeek: number;
    secPerCommonYear: number;
    secondsPerCommonYear: number;
    secPerLeapYear: number;
    secondsPerLeapYear: number;
    minPerHr: number;
    minPerHour: number;
    minutesPerHr: number;
    minutesPerHour: number;
    minPerDay: number;
    minutesPerDay: number;
    minPerWeek: number;
    minutesPerWeek: number;
    minPerCommonYear: number;
    minutesPerCommonYear: number;
    minPerLeapYear: number;
    minutesPerLeapYear: number;
    hrPerDay: number;
    hrsPerDay: number;
    hoursPerDay: number;
    hrPerWeek: number;
    hrsPerWeek: number;
    hoursPerWeek: number;
    hrPerCommonYear: number;
    hrsPerCommonYear: number;
    hoursPerCommonYear: number;
    hrPerLeapYear: number;
    hrsPerLeapYear: number;
    hoursPerLeapYear: number;
    daysPerWeek: number;
    daysPerCommonYear: number;
    daysPerCommonYr: number;
    daysPerLeapYear: number;
    daysPerLeapYr: number;
    daysPerYrAverage: number;
    daysPerYrMean: number;
    daysPerYearAverage: number;
    daysPerYearMean: number;
    weeksPerYear: {
        full: number;
        rem: {
            common: number;
            leap: number;
        };
    };
    weeksPerCommonYear: number;
    weeksPerLeapYear: number;
    fullWeeksPerYear: number;
    weeksPerYearFloored: number;
    weeksPerCommonYearFlooredRemainder: number;
    weeksPerLeapYearFlooredRemainder: number;
    monthsPerYear: number;
    monPerYear: number;
    monsPerYear: number;
    monPerYr: number;
    monsPerYr: number;
    monthsPerYr: number;
    daysPerMonth: {
        jan: number;
        january: number;
        feb: {
            common: number;
            leap: number;
        };
        february: {
            common: number;
            leap: number;
        };
        mar: number;
        march: number;
        apr: number;
        april: number;
        may: number;
        jun: number;
        june: number;
        jul: number;
        july: number;
        aug: number;
        august: number;
        sep: number;
        sept: number;
        september: number;
        oct: number;
        october: number;
        nov: number;
        november: number;
        dec: number;
        december: number;
    };
    daysPerMon: {
        jan: number;
        january: number;
        feb: {
            common: number;
            leap: number;
        };
        february: {
            common: number;
            leap: number;
        };
        mar: number;
        march: number;
        apr: number;
        april: number;
        may: number;
        jun: number;
        june: number;
        jul: number;
        july: number;
        aug: number;
        august: number;
        sep: number;
        sept: number;
        september: number;
        oct: number;
        october: number;
        nov: number;
        november: number;
        dec: number;
        december: number;
    };
    epochStartYear: number;
    epochStartMonth: number;
    epochStartDate: number;
    epochStartHour: number;
    epochStartMinute: number;
    epochStartSecond: number;
    epochStartDateStr: string;
    epochStartTimeStr: string;
    epochStartDateTimeStr: string;
    unixStartYear: number;
    unixStartMonth: number;
    unixStartDate: number;
    unixStartHour: number;
    unixStartMinute: number;
    unixStartSecond: number;
    unixStartDateStr: string;
    unixStartTimeStr: string;
    unixStartDateTimeStr: string;
};