Topic: Adjusting Log File Time To Daylight Savings

[apishdad]

I wanted to know is there a way to have the custom logging of Apache adjust automatically to Daylight Savings Time

I have my Custom Logging defined as

LogFormat "Time=\"%t\" Referer=\"%{Referer}i\" etc...etc" MyCustomLogFormat
CustomLog "|./bin/rotatelogs.exe C:/Apache24/logs/CustomLog_%Y%m%d%H%M.log 86400 -360" MyCustomLogFormat

The issue is that I live In Toronto and everytime that the Daylight Savings Time switches the time in my log files (Designated by "Time" In the above logformat) are offset by 1 hour, and I need to make that automatic.

Is there a way to do that so that in spring time the parameter in the above customlog goes to -360 (6 hours difference) and in fall it goes to -300 (5 hours difference)

[tangent]

You've chosen to hard code the offset from UTC in your rotatelogs command, which is therefore fixed when the process starts. So even if you could script changing the parameter from -360 to -300 with daylight savings, it wouldn't take effect without restarting Apache. Not ideal.

Checking https://httpd.apache.org/docs/2.4/programs/rotatelogs.html, why don't you simply use the -l option rather than applying a fixed offset?

-l Causes the use of local time rather than GMT as the base for the interval or for strftime(3) formatting with size-based rotation.