How to Show Date & Time Difference in Days, Hours, Minutes and Seconds in C# ASP.NET

First Create a Class and Code like this :-

using System;
using System.Web;

public static class ActualTime
{
    public static string TimeAgo(DateTime date)
    {
        DateTime currentDate = DateTime.Now;//To get current date
        TimeSpan actualTime = currentDate.Subtract(date);   
     
        if (actualTime.TotalMilliseconds < 1)
            return "not yet";
        if (actualTime.TotalMinutes < 1)
            return "just now";
        if (actualTime.TotalMinutes < 2)
            return "1 minute ago";
        if (actualTime.TotalMinutes < 60)
            return string.Format("{0} minutes ago", actualTime.Minutes);
        if (actualTime.TotalMinutes < 120)
            return "1 hour ago";
        if (actualTime.TotalHours < 24)
            return string.Format("{0} hours ago", actualTime.Hours);
        if (actualTime.TotalDays == 1)
            return "yesterday";
        if (actualTime.TotalDays < 7)
            return string.Format("{0} days ago", actualTime.Days);
        if (actualTime.TotalDays < 14)
            return "last week";
        if (actualTime.TotalDays < 21)
            return "2 weeks ago";
        if (actualTime.TotalDays < 28)
            return "3 weeks ago";
        if (actualTime.TotalDays < 60)
            return "last month";
        if (actualTime.TotalDays < 365)
            return string.Format("{0} months ago", Math.Round(actualTime.TotalDays / 30));
        if (actualTime.TotalDays < 730)
            return "last year";
        else
        {
            return string.Format("{0} years ago", Math.Round(actualTime.TotalDays / 365));
        }
    }
}

This class will return the output in string but we must pass parameter value in it to get the result

aspx page
Take One label and One textbox like this :

  <asp:TextBox ID="txtDate" runat="server" OnTextChanged="txtDate_TextChanged" AutoPostBack="true"></asp:TextBox>

    <asp:Label ID="lblDate" runat="server" Text="Actual time will show here"></asp:Label>

aspx.cs page
protected void txtDate_TextChanged(object sender, EventArgs e)
    {
        DateTime userInputDate = Convert.ToDateTime(txtDate.Text);
        lblDate.Text = ActualTime.TimeAgo(userInputDate);
    }

Output

That’s it!!…..Happy Programming...