Laravel 8.x Is there any way to bind CustomLogger using monolog with DateTimeZone set via Service Providers

I’d like to override all of Laravel logger’s dateTimeZone to ‘Asia/Tokyo’, but not changing config/app.php => timezone.

Laravel comes with monolog library by default, and basically IlluminateLogLogManager is doing all the work to instantiate MonologLogger objects.

We can pass DateTimeZone object to MonologLogger constructor’s 4th argument, but there is no way we can pass that to LogManager via config/logging.php or anything.

I know that there’s a way to create custom logger object with full control and register to custom channel.
https://laravel.com/docs/8.x/logging#creating-custom-channels-via-factories

One way is that I’ll create & use AppLoggingCreateCustomLoggerWithTokyoTimeZone::class and modify all of the default existing channels.

The other way is that I’ll somehow override LogManager and bind it to service container ‘s log service. (override log service, but it’s a singleton)

Any good ideas? Anything is appreciated.