Log4Net: Log with UTC times
.net, log4net
Solution
Replace %date by %utcdate.
Example:
<conversionPattern value="%utcdate{ABSOLUTE} UTC %c{1} - %m%n" />
In this example, {ABSOLUTE} is a date format specifier: see The Log4Net PatternLayout documentation for more info.
I suspect `dateTimeStrategy` may be more to do with determining which midnight (local or UTC) to use when rolling by date, but am not sure about this.
Problem
Using log4net 1.2.11.0 w/ .NET, how can I get the RollingFileAppender to output UTC dates? According to Apache it should be as easy as: ``` <dateTimeStrategy type="log4net.Appender.RollingFileAppender+UniversalDateTime" /> ``` Unfortunately this is not working. The entirety of my log4net configuration is: ``` <log4net> <appender name="RollingFile" type="log4net.Appender.RollingFileAppender"> <file value="Log-.txt" /> <rollingStyle value="Date" /> <datePattern value="yyyyMMdd"/> <PreserveLogFileNameExtension value="true" /> <staticLogFileName value="false"/> <appendToFile value="true" /> <maxSizeRollBackups value="10" /> <dateTimeStrategy type="log4net.Appender.RollingFileAppender+UniversalDateTime" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date %-5level %logger - %message%newline" /> </layout> </appender> <root> <!-- Options are "ALL", "DEBUG", "INFO", "WARN", "ERROR", "FATAL" and "OFF". --> <level value="DEBUG" /> <appender-ref ref="RollingFile" /> </root> </log4net> ``` Using a decompiler I can see that the log4net dll has the type 'UniversalDateTime' as a private class inside of RollingFileAppender.