in reply to Correct keys in hashes

Quote a key is NOT better than just use a word! When a HASH keys is declared a word will be a word (will never be treated as a sub call). So, write (time => 'foo') is not the same of (time() => 'foo'). If you want to lose your time quoting this is your choice.

Graciliano M. P.
"Creativity is the expression of the liberty".