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How to Calculate relative time in C#

Anonymous User 1620 02 Jun 2018

Given a specific DateTime value, how do I display relative time, like:

1 hours ago

3 days ago

2 month ago

3 year ago

Ask by Anonymous User

Updated 02 Jun 2018

1 Answers

SQL Tutorials Point 02 Jun 2018

use following code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace Example.Models
{
    public static class Common
    {
        public static string ToRelativeTime(this DateTime date)

        {
            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 = new TimeSpan(DateTime.Now.Ticks - date.Ticks);
            double delta = Math.Abs(ts.TotalSeconds);

            if (delta < 0)
            {
                return "not yet";
            }

            if (delta < 1 * MINUTE)
            {
                return ts.Seconds == 1 ? "one second ago" : ts.Seconds + " seconds ago";
            }
            if (delta < 2 * MINUTE)
            {
                return "a minute ago";
            }

            if (delta < 45 * MINUTE)
            {
                return ts.Minutes + " minutes ago";
            }

            if (delta < 90 * MINUTE)
            {
                return "an hour ago";
            }

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

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

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

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

use above method like this:

DateTime.Now.ToRelativeTime();

thanks, i hope it will help for you.

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