System.Cron.Describe does not accept time zone settings

[illegalprime]

I'd like to display the cron description in the local timezone. So,

At 02:00 AM, every 3 days

would be (in my time zone, settable w/ the opts monoid)

At 09:00 PM, every 3 days

Also, being able to remove the leading zeros would be nice (in the hours component)

[MichaelXavier]

@illegalprime Do you feel comfortable writing a PR that adds this?

[illegalprime]

I can give it a shot yeah