Format Future Date As Relative - CSharp System

CSharp examples for System:DateTime Format

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Description

Format Future Date As Relative

Demo Code


using System;/*ww w .ja v a 2s  . c  o m*/

public class Main{
        public static string FormatFutureDateAsRelative(DateTime givenDate)
        {
            var ts = new TimeSpan(givenDate.Ticks - DateTime.UtcNow.Ticks);

            if (ts.Ticks < 0)
            {
                return "the past";
            }

            double delta = Math.Abs(ts.TotalSeconds);

            if (delta < 1 * MINUTE)
            {
                return ts.Seconds == 1 ? "one second" : ts.Seconds + " seconds";
            }

            if (delta < 45 * MINUTE)
            {
                return ts.Minutes == 1 ? "a minute" : ts.Minutes + " minutes";
            }

            if (delta < 24 * HOUR)
            {
                return ts.Hours <= 1 ? "an hour" : ts.Hours + " hours";
            }

            if (delta < 48 * HOUR)
            {
                return "tomorrow";
            }

            if (delta < 30 * DAY)
            {
                return ts.Days + " days";
            }

            if (delta < 12 * MONTH)
            {
                int months = Convert.ToInt32(Math.Floor((double)ts.Days / 30));
                return months <= 1 ? "one month" : months + " months";
            }
            else
            {
                int years = Convert.ToInt32(Math.Floor((double)ts.Days / 365));
                return years <= 1 ? "one year" : years + " years";
            }
        }
}

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