Method checkAndCastDay

src/main/java/com/amazon/ion/Timestamp.java:2909–2917

(int day, int year, int month)

    }

    private static byte checkAndCastDay(int day, int year, int month)
    {
        int lastDayInMonth = last_day_in_month(year, month);
        if (day < 1 || day > lastDayInMonth) {
            throw new IllegalArgumentException(String.format("Day %s for year %s and month %s must be between 1 and %s inclusive", day, year, month, lastDayInMonth));
        }

        return (byte) day;
    }

    private static byte checkAndCastHour(int hour)
    {