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69.7k
How to get the time zone besides to time stamp
Jan 30 2020 9:51 AM
Hello All,
Hope you are doing good!!
Here i have written a code for getting the browser time zone(comparing with server time zone),
By that i need to print the time zone also beside to time stamp..
Here i am adding the code and screenshot..
public
partial
class
WebForm1 : System.Web.UI.Page
{
public
static
DateTime getClientTime(
string
date,
object
ClientTimeZoneoffset)
{
string
s1 =
""
;
s1 = ClientTimeZoneoffset.ToString().Substring(0, ClientTimeZoneoffset.ToString().IndexOf(
"#"
));
if
(s1 !=
null
)
{
string
Temp = s1.ToString().Trim();
if
(!Temp.Contains(
"+"
) && !Temp.Contains(
"-"
))
{
Temp = Temp.Insert(0,
"+"
);
}
//Retrieve all system time zones available into a collection
ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones();
DateTime startTime = DateTime.Parse(date);
DateTime _now = DateTime.Parse(date);
foreach
(TimeZoneInfo timeZoneInfo
in
timeZones)
{
string
str = Regex.Match(ClientTimeZoneoffset.ToString(), @
"\(([^)]*)\)"
).Groups[1].Value;
if
(timeZoneInfo.ToString().Contains(Temp) && timeZoneInfo.Id.ToString().Contains(str))
{
TimeZoneInfo tst = TimeZoneInfo.FindSystemTimeZoneById(timeZoneInfo.Id);
_now = TimeZoneInfo.ConvertTime(startTime, TimeZoneInfo.Utc, tst);
break
;
}
}
return
_now;
}
else
return
DateTime.Parse(date);
}
protected
void
Page_Load(
object
sender, EventArgs e)
{
if
(IsPostBack ==
true
)
{
if
(String.IsNullOrEmpty(HiddenFieldClientTime.Value) ==
false
)
{
string
Temp = HiddenFieldClientTime.Value;
// call the method to convert the utc now time to client time
TextBox1.Text = getClientTime(DateTime.UtcNow.ToString(), Temp).ToString();
}
}
}
}
}
<script type=
"text/javascript"
>
var
minutes;
function
calculate_time_zone() {
debugger
;
var
rightNow =
new
Date();
var
jan1 =
new
Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);
// jan 1st
var
june1 =
new
Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0);
// june 1st
var
temp = jan1.toGMTString();
var
jan2 =
new
Date(temp.substring(0, temp.lastIndexOf(
" "
) - 1));
temp = june1.toGMTString();
var
june2 =
new
Date(temp.substring(0, temp.lastIndexOf(
" "
) - 1));
var
std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);
var
daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
var
dst;
if
(std_time_offset == daylight_time_offset) {
dst =
"0"
;
}
else
{
var
hemisphere = std_time_offset - daylight_time_offset;
if
(hemisphere >= 0)
std_time_offset = daylight_time_offset;
dst =
"1"
;
}
var
i;
// Here set the value of hidden field to the ClientTimeZone.
minutes = convert(std_time_offset);
TimeField = document.getElementById(
"HiddenFieldClientTime"
);
debugger
;
TimeField.value = minutes +
'#'
+
' '
+ jan1;
alert(
'your time zone is '
+ jan1);
}
// This function is to convert the timezoneoffset to Standard format
function
convert(value) {
var
hours = parseInt(value);
value -= parseInt(value);
value *= 60;
var
mins = parseInt(value);
value -= parseInt(value);
value *= 60;
var
secs = parseInt(value);
var
display_hours = hours;
// handle GMT case (00:00)
if
(hours == 0) {
display_hours =
"00"
;
}
else
if
(hours > 0) {
// add a plus sign and perhaps an extra 0
display_hours = (hours < 10) ?
"+0"
+ hours :
"+"
+ hours;
}
else
{
// add an extra 0 if needed
display_hours = (hours > -10) ?
"-0"
+ Math.abs(hours) : hours;
}
mins = (mins < 10) ?
"0"
+ mins : mins;
return
display_hours +
":"
+ mins;
}
// Adding the funtion to onload event of document object
onload = calculate_time_zone;
</script>
</head>
<body>
<form id=
"form1"
runat=
"server"
>
<div>
<asp:HiddenField ID=
"HiddenFieldClientTime"
runat=
"server"
/>
<asp:TextBox ID=
"TextBox1"
runat=
"server"
></asp:TextBox>
<asp:Button ID=
"Button1"
runat=
"server"
Text=
"Button"
/>
</div>
</form>
</body>
Can any one guide me here..!
Thank you in advance!!
Reply
Answers (
1
)
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