This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

zone 

        # DateTime.zone

(from ruby core)
---
    d.zone  ->  string

---

Returns the timezone.

    DateTime.parse('04pm+0730').zone          #=> "+07:30"

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.