QClock Conversion Extensions

QClockExtensions.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace QClockExtensions
{
    public static class DateExtensions
    {
        public static int ToQClockMinute(this DateTime date)
        {
            DateTime zeroDate = new DateTime(2017, 10, 8);

            if (date.Year == zeroDate.Year && date.Month == zeroDate.Month && date.Day == zeroDate.Day)
            {
                return 0;
            }

            int days = (date - zeroDate).Days;

            if (date < zeroDate)
            {
                return (days % 60) + 60;
            }            
            else
            {
                return (days % 60);
            }
        }
    }

    public static class IntExtensions
    {
        public static int QClockToMirror(this int minute)
        {
            if (minute > 60 || minute < 0)
            {
                // Invalid Entry
                return 0; 
            }

            return minute >= 30 ? minute - 30 : minute + 30;
        }

        public static int QClockToFlip(this int minute)
        {
            if (minute > 60 || minute < 0)
            {
                // Invalid Entry
                return 0;
            }

            return minute <= 50 ? Math.Abs(minute-50) : 60 - Math.Abs(minute-50);
        }
    }
}