Converts a Date to a string using relative time. : Date Time Util « Date Time « C# / C Sharp

1. C# / C Sharp
2. Date Time
3. Date Time Util

Converts a Date to a string using relative time.

   

//Microsoft Public License (Ms-PL)
//http://visualizer.codeplex.com/license
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Redwerb.BizArk.Core.DateExt
{

    /// <summary>
    /// Provides extension methods for dates.
    /// </summary>
    public static class DateExt
    {

        /// <summary>
        /// Converts a Date to a string using relative time.
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string ToRelativeTimeString(this DateTime value)
        {
            const int SECOND = 1;
            const int MINUTE = 60 * SECOND;
            const int HOUR = 60 * MINUTE;
            const int DAY = 24 * HOUR;
            const int MONTH = 30 * DAY;

            var ts = DateTime.Now.Subtract(value);
            double seconds = ts.TotalSeconds;

            // Less than one minute
            if (seconds < 1 * MINUTE)
                return ts.Seconds == 1 ? "one second ago" : ts.Seconds + " seconds ago";

            if (seconds < 60 * MINUTE)
                return ts.Minutes + " minutes ago";

            if (seconds < 120 * MINUTE)
                return "an hour ago";

            if (seconds < 24 * HOUR)
                return ts.Hours + " hours ago";

            if (seconds < 48 * HOUR)
                return "yesterday";

            if (seconds < 30 * DAY)
                return ts.Days + " days ago";

            if (seconds < 12 * MONTH)
            {
                int months = System.Convert.ToInt32(Math.Floor((double)ts.Days / 30));
                return months <= 1 ? "one month ago" : months + " months ago";
            }

            int years = System.Convert.ToInt32(Math.Floor((double)ts.Days / 365));
            return years <= 1 ? "one year ago" : years + " years ago";
        }

    }
}

   
    
    
  

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