Get Client TimeZone (Date and Time) based on IP Address in ASP.Net

Hi RichardSa,

No, you have to use any api to get this on page load.

Refer below code.

HTML

<asp:Label ID="Timelbl" runat="server" />

Namespaces

C#

using System.Linq;
using System.Net;
using System.Web.Script.Serialization;

VB.Net

Imports System.Linq
Imports System.Net
Imports System.Web.Script.Serialization

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    LoginDateTime();
}

private Location GetLocation()
{
    string ipAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
    if (string.IsNullOrEmpty(ipAddress))
    {
        ipAddress = Request.ServerVariables["REMOTE_ADDR"];
    }
    //string ipAddress = "209.142.68.29";
    string APIKey = "API_Key";
    string url = string.Format("https://api.ip2location.io/?key={0}&ip={1}&format=json", APIKey, ipAddress);
    ServicePointManager.Expect100Continue = true;
    ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
    using (WebClient client = new WebClient())
    {
        string json = client.DownloadString(url);
        Location location = new JavaScriptSerializer().Deserialize<Location>(json);
        return location;
    }
}

private void LoginDateTime()
{
    DateTime time1 = Convert.ToDateTime("2023/06/19 22:25");
    TimeZoneInfo serverTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Alaskan Standard Time");
    TimeZoneInfo userTimeZone = TimeZoneInfo.FindSystemTimeZoneById(GetTimeZoneNameByOffsetTime(this.GetLocation().time_zone.Replace("+", "")));
    DateTime userLocalTime = TimeZoneInfo.ConvertTime(time1, serverTimeZone, userTimeZone);
    Timelbl.Text = userLocalTime.ToString("dddd, MMMM d, yyyy h:mm tt");
}

public string GetTimeZoneNameByOffsetTime(string offset)
{
    return TimeZoneInfo.GetSystemTimeZones().FirstOrDefault(x => x.BaseUtcOffset == TimeSpan.Parse(offset)).StandardName;
}

public class Location
{
    public string ip { get; set; }
    public string country_code { get; set; }
    public string country_name { get; set; }
    public string region_name { get; set; }
    public string city_name { get; set; }
    public double latitude { get; set; }
    public double longitude { get; set; }
    public string zip_code { get; set; }
    public string time_zone { get; set; }
    public string asn { get; set; }
    public string @as { get; set; }
    public bool is_proxy { get; set; }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    LoginDateTime()
End Sub
 
Private Function GetLocation() As Location
    Dim ipAddress As String = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
 
    If String.IsNullOrEmpty(ipAddress) Then
        ipAddress = Request.ServerVariables("REMOTE_ADDR")
    End If
 
    Dim APIKey As String = "API_Key"
    Dim url As String = String.Format("https://api.ip2location.io/?key={0}&ip={1}&format=json", APIKey, ipAddress)
    ServicePointManager.Expect100Continue = True
    ServicePointManager.SecurityProtocol = CType(3072, SecurityProtocolType)
 
    Using client As WebClient = New WebClient()
        Dim json As String = client.DownloadString(url)
        Dim location As Location = New JavaScriptSerializer().Deserialize(Of Location)(json)
        Return location
    End Using
End Function
 
Private Sub LoginDateTime()
    Dim time1 As DateTime = Convert.ToDateTime("2023/06/19 22:25")
    Dim serverTimeZone As TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("Alaskan Standard Time")
    Dim userTimeZone As TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById(GetTimeZoneNameByOffsetTime(Me.GetLocation().time_zone.Replace("+", "")))
    Dim userLocalTime As DateTime = TimeZoneInfo.ConvertTime(time1, serverTimeZone, userTimeZone)
    Timelbl.Text = userLocalTime.ToString("dddd, MMMM d, yyyy h:mm tt")
End Sub
 
Public Function GetTimeZoneNameByOffsetTime(ByVal offset As String) As String
    Return TimeZoneInfo.GetSystemTimeZones().FirstOrDefault(Function(x) x.BaseUtcOffset = TimeSpan.Parse(offset)).StandardName
End Function
 
Public Class Location
    Public Property ip As String
    Public Property country_code As String
    Public Property country_name As String
    Public Property region_name As String
    Public Property city_name As String
    Public Property latitude As Double
    Public Property longitude As Double
    Public Property zip_code As String
    Public Property time_zone As String
    Public Property asn As String
    Public Property [as] As String
    Public Property is_proxy As Boolean
End Class

Output

Tuesday, June 20, 2023 1:25 AM