How to change Console.app log queries' time format I'd like to change the time format from 12 to 24 hours in the log queries.

The logs themselves are already in 24-hour, but the queries show in 12-hour format.

I checked asl.conf's man page but I couldn't find an option, nor did perusing the actual file at /private/etc/asl.conf.

I also checked the default All Messages query file and a custom one, to no avail, at /Applications/Utilities/Console.app/Contents/Resources/ASLQueries/All Messages.aslquery.

Make sure you select View>Show Milliseconds to reproduce it, which seems to override the setting Medium in System Preferences>Language &amp; Text>Region>Times>Customize….

I use Console.app v10.8 on Mountain Lion.
For El Capitan - macOS 10.11.6

Go to System Preferences->Language and Region and choose the Time Format.

Changing it to non 24hr seemed to give a quick response in Console but changing back seemed to need a restart of Console.app