Article ID: 194699 - Last Review: July 7, 2008 - Revision: 4.2

Extended Log File Format Always in GMT

View products that this article applies to.

System TipThis article applies to a different operating system than the one you are using. Article content that may not be relevant to you is disabled.

This article was previously published under Q194699

We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 7.0 running on Microsoft Windows Server 2008. IIS 7.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx (http://www.microsoft.com/technet/security/prodtech/IIS.mspx)

For more information about IIS 7.0, visit the following Microsoft Web site:

http://www.iis.net/default.aspx?tabid=1 (http://www.iis.net/default.aspx?tabid=1)

Expand all | Collapse all

SYMPTOMS

Internet Information Server (IIS) and Internet Information Services (IIS) administrators cannot change the time format for the extended log file format to use a time zone other than Greenwich Mean Time (GMT).

Back to the top

CAUSE

The extended log file format is defined in the W3C Working Draft WD- logfile-960323 specification by Phillip M. Hallam-Baker and Brian Behlendorf. This document defines the Date and Time files to always be in GMT:

Date
<date> = 4<digit> "-" 2<digit> "-" 2<digit> Dates are recorded in the format YYYY-MM-DD where YYYY, MM and DD stand for the numeric year, month and day respectively. All dates are specified in GMT. This format is chosen to assist collation using sort.

Time
<time> = 2<digit> ":" 2<digit> [":" 2<digit> ["." *<digit>]

Times are recorded in the form HH:MM, HH:MM:SS or HH:MM:SS.S where HH is the hour in 24 hour format, MM is minutes, and SS is seconds. All times are specified in GMT.

This behavior is by design.

Back to the top