Changing the date format to Greenwich Mean Time (GMT) using Classic ASP

Question

Changing the date format to Greenwich Mean Time (GMT) using Classic ASP

Can anyone help me convert the date to GMT format? I would really appreciate any assistance.

Update:

I came across this code snippet:

<% response.write currentUTC() %>

<script language=jscript runat=server>
    function currentUTC(){
    var d, s;
    d = new Date();
    s = "Server current UTC time is: ";
    s += d.toUTCString('!%a, %d %b %Y %H:%M:%S GMT');
    return(s);
  }
</script>

The output is: Server current UTC time is: Fri, 15 Jan 2016 07:42:13 UTC

However, I need it in the format YYYYMMDDHHMMSS.

Any ideas?

Update:

I attempted to use the following function:

GetServerGMT=Year(Now())&Month(Now())&Day(Now())&Hour(Now())&Minute(Now())&Second(Now())&WeekDay(Now())

It returns: 20161172035121

But that doesn't seem to be a valid timestamp.

javascript date asp-classic

Answer 1

Answer №1

Expanding on Lankymart's reference. When working with ASP Classic, there are numerous time and date options available, but it often necessitates creating a distinct function or subroutine for each unique case.

In my experience, the GMT value in my HTTP Only cookie differs from that in my GMT RSS Feed layout.

For instance: strGMTDateRFC22 = CookieServerUTC("d",1,5,"GMT")

'# following formating RFC22 for your GMT Cookie time. 
    strGMTDateRFC22 = CookieServerUTC("d","&strCookieExpires&",5,"GMT")  ' 1 Day set in char enc dec page
    Response.AddHeader "Set-Cookie", strCookieName & "=" & strCookieKey & "=" & strCookieValue & "; expires=" & strGMTDateRFC22 & "; domain="& strCookieDomain &"; path=/; HTTPOnly"

The first of two functions:

Function CookieServerUTC(strD,strT,strOSet,strZ)
Dim strTG,strCookieD
'snipped unwanted code
        strTG = DateAdd("h", strOSet,Now())
        strCookieD = DateAdd(strD,strT,CDate(strTG))
     CookieServerUTC =  fncFmtDate(strCookieD, "%a, %d %b %Y %H:%N:%S "&strZ&"")
    End Function

Another scenario where setting up Server UTC is necessary - accommodating parameters for strH = "h", strT = "5" (strT Time Offset +/-), and strZ representing GMT (Timezone).

Function GetServerUTC(strH,strT,strZ)

 GetServerUTC = fncFmtDate(DateAdd(strH,strT,Now()), "%a, %d %b %Y %H:%N:%S "&strZ&"")
    
End Function

Additionally, here is the script released in 2001 during the prime days of ASP Classic. Shared by 4guysfromrolla.com, it has likely aided countless Time Date format enthusiasts.

Access the link below which contains the customizable date formatting routine developed by Ken Schaefer: Customizable Date Formatting Routine by Ken Schaefer

Function fncFmtDate( _
        byVal strDate, _
        byRef strFormat _
       )
     ' Accepts strDate as a valid date/time,
     ' strFormat as the output template.
     ' The function finds each item in the
     ' template and replaces it with the
     ' relevant information extracted from strDate
     
     ... (omitted for brevity) ...
     
    End Function ' fncFmtDate

With plenty of solutions at hand, select the date time formatting method that aligns best with your projects and advance from there.

... (remaining content left untouched) ...

Answer 2

Expanding on Lankymart's reference. When working with ASP Classic, there are numerous time and date options available, but it often necessitates creating a distinct function or subroutine for each unique case.

In my experience, the GMT value in my HTTP Only cookie differs from that in my GMT RSS Feed layout.

For instance: strGMTDateRFC22 = CookieServerUTC("d",1,5,"GMT")

'# following formating RFC22 for your GMT Cookie time. 
    strGMTDateRFC22 = CookieServerUTC("d","&strCookieExpires&",5,"GMT")  ' 1 Day set in char enc dec page
    Response.AddHeader "Set-Cookie", strCookieName & "=" & strCookieKey & "=" & strCookieValue & "; expires=" & strGMTDateRFC22 & "; domain="& strCookieDomain &"; path=/; HTTPOnly"

The first of two functions:

Function CookieServerUTC(strD,strT,strOSet,strZ)
Dim strTG,strCookieD
'snipped unwanted code
        strTG = DateAdd("h", strOSet,Now())
        strCookieD = DateAdd(strD,strT,CDate(strTG))
     CookieServerUTC =  fncFmtDate(strCookieD, "%a, %d %b %Y %H:%N:%S "&strZ&"")
    End Function

Another scenario where setting up Server UTC is necessary - accommodating parameters for strH = "h", strT = "5" (strT Time Offset +/-), and strZ representing GMT (Timezone).

Function GetServerUTC(strH,strT,strZ)

 GetServerUTC = fncFmtDate(DateAdd(strH,strT,Now()), "%a, %d %b %Y %H:%N:%S "&strZ&"")
    
End Function

Additionally, here is the script released in 2001 during the prime days of ASP Classic. Shared by 4guysfromrolla.com, it has likely aided countless Time Date format enthusiasts.

Access the link below which contains the customizable date formatting routine developed by Ken Schaefer: Customizable Date Formatting Routine by Ken Schaefer

Function fncFmtDate( _
        byVal strDate, _
        byRef strFormat _
       )
     ' Accepts strDate as a valid date/time,
     ' strFormat as the output template.
     ' The function finds each item in the
     ' template and replaces it with the
     ' relevant information extracted from strDate
     
     ... (omitted for brevity) ...
     
    End Function ' fncFmtDate

With plenty of solutions at hand, select the date time formatting method that aligns best with your projects and advance from there.

... (remaining content left untouched) ...

Answer 3

Answer №2

The content within the Date() function dictates the outcome. Understanding the Time Zone of the server is crucial in Classic ASP, as it retrieves the date from the Regional System Settings of the hosting Web Server.

To adjust for different time zones, utilize the DateAdd() function by adding or subtracting hours based on the necessary offset.

<%
Dim offset
'Offset example: PST to GMT
offset = -8
Response.Write DateAdd("h", offset, Date())
%>

However, the output remains a raw date string displayed according to default format settings dependent on the Server's regional configuration.

For tailored date formats, visit Format current date and time.

Referencing this comment, rearrange date components for a custom format like YYYYMMDDHHMMSS:

Dim dt
dt = yy & mm & dd & hh & nn & ss
Response.Write dt

Calculate date values using Now(); substitute with:

dtsnow = DateAdd("h", offset, Date())

Prior to offering assistance outright, consider attempting the modifications independently following the guidelines from the provided reference.

Dim dd, mm, yy, hh, nn, ss
Dim datevalue, timevalue, dtsnow, dtsvalue

'Store DateTimeStamp once without offset.
dtsnow = Now()

'Capture individual date components
dd = Right("00" & Day(dtsnow), 2)
mm = Right("00" & Month(dtsnow), 2)
yy = Year(dtsnow)
hh = Right("00" & Hour(dtsnow), 2)
nn = Right("00" & Minute(dtsnow), 2)
ss = Right("00" & Second(dtsnow), 2)

'Construct yyyyMMdd date string
datevalue = yy & mm & dd
'Formulate HHmmss time string
timevalue = hh & nn & ss
'Merge both to acquire timestamp yyyymmddhhmmss
dtsvalue = datevalue & timevalue

'Display on screen
Call Response.Write(dtsvalue)

Answer 4

The content within the Date() function dictates the outcome. Understanding the Time Zone of the server is crucial in Classic ASP, as it retrieves the date from the Regional System Settings of the hosting Web Server.

To adjust for different time zones, utilize the DateAdd() function by adding or subtracting hours based on the necessary offset.

<%
Dim offset
'Offset example: PST to GMT
offset = -8
Response.Write DateAdd("h", offset, Date())
%>

However, the output remains a raw date string displayed according to default format settings dependent on the Server's regional configuration.

For tailored date formats, visit Format current date and time.

Referencing this comment, rearrange date components for a custom format like YYYYMMDDHHMMSS:

Dim dt
dt = yy & mm & dd & hh & nn & ss
Response.Write dt

Calculate date values using Now(); substitute with:

dtsnow = DateAdd("h", offset, Date())

Prior to offering assistance outright, consider attempting the modifications independently following the guidelines from the provided reference.

Dim dd, mm, yy, hh, nn, ss
Dim datevalue, timevalue, dtsnow, dtsvalue

'Store DateTimeStamp once without offset.
dtsnow = Now()

'Capture individual date components
dd = Right("00" & Day(dtsnow), 2)
mm = Right("00" & Month(dtsnow), 2)
yy = Year(dtsnow)
hh = Right("00" & Hour(dtsnow), 2)
nn = Right("00" & Minute(dtsnow), 2)
ss = Right("00" & Second(dtsnow), 2)

'Construct yyyyMMdd date string
datevalue = yy & mm & dd
'Formulate HHmmss time string
timevalue = hh & nn & ss
'Merge both to acquire timestamp yyyymmddhhmmss
dtsvalue = datevalue & timevalue

'Display on screen
Call Response.Write(dtsvalue)

Changing the date format to Greenwich Mean Time (GMT) using Classic ASP

Answer №1

Answer №2

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