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

- 

        # Time.-

(from ruby core)
---
    time - other_time -> float
    time - numeric    -> time

---

Returns a difference in seconds as a Float between *time* and
`other_time`, or subtracts the given number of seconds in `numeric` from
*time*.

    t = Time.now       #=> 2020-07-20 22:15:49.302766336 +0900
    t2 = t + 2592000   #=> 2020-08-19 22:15:49.302766336 +0900
    t2 - t             #=> 2592000.0
    t2 - 2592000       #=> 2020-07-20 22:15:49.302766336 +0900

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.