itojun@iijlab.net writes:

> 	The argument Todd raised was, we should copy the timezone file
> 	so that we can use time-related functions even before we mount
> 	/usr.

You can use time-related functions without /etc/localtime. With a
symlink it's very easy to see which timezone file you're using, and if
you upgrade /usr/share/zoneinfo, you get the new data automatically.

/Johan