A utility class for converting between time units and ticks (e.g days in ticks, ticks to hours, etc)

TickUnit.java

package reghzy.api.utils;

import java.util.concurrent.TimeUnit;

public class TickUnit {
    private static final double C1d = 50000000.0d;
    private static final double C2d = 50000.0d;
    private static final double C3d = 50.0d;
    private static final double C4d = 20.0d;
    private static final double C5d = 1200.0d;
    private static final double C6d = 72000.0d;
    private static final double C7d = 86400.0d;

    /**
     * Converts the given number of ticks into nanoseconds
     */
    public static double toNanos(long ticks)   { return ticks * C1d; }

    /**
     * Converts the given number of ticks into microseconds
     */
    public static double toMicros(long ticks)  { return ticks * C2d; }

    /**
     * Converts the given number of ticks into milliseconds
     */
    public static double toMillis(long ticks)  { return ticks * C3d; }

    /**
     * Converts the given number of ticks into seconds
     */
    public static double toSeconds(long ticks) { return ticks / C4d; }

    /**
     * Converts the given number of ticks into minutes
     */
    public static double toMinutes(long ticks) { return ticks / C5d; }

    /**
     * Converts the given number of ticks into hours
     */
    public static double toHours(long ticks)   { return ticks / C6d; }

    /**
     * Converts the given number of ticks into days
     */
    public static double toDays(long ticks)    { return ticks / C7d; }

    /**
     * Converts the given value (in the unit of the given unit, e.g 30 seconds) into ticks
     */
    public static long toTicks(double source, TimeUnit sourceUnit) {
        switch (sourceUnit) {
            case NANOSECONDS:
                return (long) (source / C1d);
            case MICROSECONDS:
                return (long) (source / C2d);
            case MILLISECONDS:
                return (long) (source / C3d);
            case SECONDS:
                return (long) (source * C4d);
            case MINUTES:
                return (long) (source * C5d);
            case HOURS:
                return (long) (source * C6d);
            case DAYS:
                return (long) (source * C7d);
            default:
                throw new IllegalStateException("Unexpected value: " + sourceUnit);
        }
    }
}