Creating a new log file each day

Question

As the title implies how can I create a new log file each day in C#? Now the program may not necessarily run all day and night but only get invoked during business hours. So I need to do two things.

1. How can I create a new log file each day? The log file will be have the name in a format like MMDDYYYY.txt
2. How can I create it just after midnight in case it is running into all hours of the night?

Answer 1

Update 2018: I prefer to use NLog now

Previous answer about log4net:

This example shows how to configure the RollingFileAppender to roll log files on a date period. This example will roll the log file every minute! To change the rolling period adjust the DatePattern value. For example, a date pattern of "yyyyMMdd" will roll every day.
See System.Globalization.DateTimeFormatInfo for a list of available patterns.

<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
    <file value="C:\temp\rolling.log" />
    <appendToFile value="true" />
    <rollingStyle value="Date" />
    <datePattern value="yyyyMMdd-HHmm" />
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
</appender>