Function getDay

test/json3.js:331–333

(year, month)

            // Internal: Calculates the number of days between the Unix epoch and the
            // first day of the given month.
            var getDay = function (year, month) {
              return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
            };
            getData = function (value) {
              // Manually compute the year, month, date, hours, minutes,
              // seconds, and milliseconds if the `getUTC*` methods are