API used to approximate a time [hh:mm] in seconds that was mistakenly multiplied by 24.

CorruptedTimeApproximationHelper.java

/**
     * Approximates the minutes given a time in seconds that was mistakenly multiplied by 24.<BR/>
     * Here is the wrong formula used in the first place. It was used to supposedly calculate a time [hh:mm] in seconds:<BR/>
     * <pre>hourOfDay * 24 * 3600 + minute * 60</pre>
     * Here's the formula we've come up with to approximate the minutes:<BR/>
     * <pre>m ~= (x/60) - (1440*E(x/86400))</pre>
     * Where x is the time in seconds and E(h) is the hours rounded to floor.
     *
     * @param seconds time [hh::mm] in seconds that was multiplied by 24.
     * @return int
     */
    public static int getMinutesFromCorrupt(long seconds) {
        return (((int) seconds / 60) - (int) (1440 * seconds / 86400));
    }

    /**
     * Approximates the hours part of a time in seconds mistakenly multiplied by 24.
     * The formula is the following:
     * <pre>h ~= x/86400</pre>
     * Where x is the time in seconds.
     *
     * @param seconds time [hh::mm] in seconds that was multiplied by 24.
     * @return int
     */
    public static int getHourFromCorrupt(long seconds) {

        return Math.round(seconds / 86400);
    }


    /**
     * Computes a time in milliseconds given a time in seconds mistakenly multiplied by 24.
     * Formula used:
     * <pre>x' ~= (E((x/86400)*3600) + ((x/60) - (1440*E(((x/86400)*3600)))) * 60)*1000</pre>
     * Where E(h) is a floor of h and x in the time in seconds.
     *
     * @param seconds time [hh::mm] in seconds that was multiplied by 24.
     * @return long
     */
    public static long getMillisFromCorrupt(long seconds) {
        return ((getHourFromCorrupt(seconds) * 3600) + (getMinutesFromCorrupt(seconds) * 60) * 1000);
    }