Class: DateTime

Inherits:

Object

• Object
• DateTime

Defined in:

lib/astro-algo.rb

Instance Method Summary

• #to_date ⇒ Object

  Truncate date/time to date.

• #to_utc ⇒ Object

  Adjust dynamical time to UTC.

Instance Method Details

#to_date ⇒ Object

Truncate date/time to date. Returns a Date object for the given DateTime.

# File 'lib/astro-algo.rb', line 98

def to_date
    Date.new(year, month, day)
end

#to_utc ⇒ Object

Adjust dynamical time to UTC. Returns rational number of seconds.

# File 'lib/astro-algo.rb', line 92

def to_utc
    self - Astro.delta_T(self).to_r / 86400     # convert from seconds to days
end