general_time

Installation

Add this line to your application's Gemfile:

gem 'general_time'

And then execute:

$ bundle

Or install it yourself as:

$ gem install general_time

Usage

#days_between

Formula: ((date2.yday - date1.yday) + 365 * (date2.year - date1.year)).abs

require "date"
require "general_time"

Date.new(2017, 2, 10).days_between(Date.new(2017, 2, 10)) # => 0

Date.new(2017, 2, 9).days_between(Date.new(2017, 2, 10)) # => 1
Date.new(2017, 2, 10).days_between(Date.new(2017, 2, 9)) # => 1
Date.new(2017, 2, 1).days_between(Date.new(2017, 2, 10)) # => 9
Date.new(2017, 2, 10).days_between(Date.new(2017, 2, 1)) # => 9
Date.new(2016, 2, 10).days_between(Date.new(2017, 2, 10)) # => 365
Date.new(2017, 2, 10).days_between(Date.new(2016, 2, 10)) # => 365

require "general_time"

Time.new(2017, 2, 10, 10, 10, 10).days_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0

Time.new(2017, 2, 10, 9, 10, 10).days_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0
Time.new(2017, 2, 10, 10, 10, 10).days_between(Time.new(2017, 2, 10, 9, 10, 10)) # => 0

Time.new(2017, 2, 9, 10, 10, 10).days_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 1
Time.new(2017, 2, 10, 10, 10, 10).days_between(Time.new(2017, 2, 9, 10, 10, 10)) # => 1
Time.new(2017, 2, 1, 10, 10, 10).days_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 9
Time.new(2017, 2, 10, 10, 10, 10).days_between(Time.new(2017, 2, 1, 10, 10, 10)) # => 9
Time.new(2016, 2, 10, 10, 10, 10).days_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 365
Time.new(2017, 2, 10, 10, 10, 10).days_between(Time.new(2016, 2, 10, 10, 10, 10)) # => 365

#weeks_between

Formula: ((date2.cweek - date1.cweek) + 52 * (date2.year - date1.year)).abs

require "date"
require "general_time"

Date.new(2017, 2, 10).weeks_between(Date.new(2017, 2, 10)) # => 0

Date.new(2017, 2, 3).weeks_between(Date.new(2017, 2, 10)) # => 1
Date.new(2017, 2, 10).weeks_between(Date.new(2017, 2, 3)) # => 1
Date.new(2016, 12, 9).weeks_between(Date.new(2017, 2, 10)) # => 9
Date.new(2017, 2, 10).weeks_between(Date.new(2016, 12, 9)) # => 9
Date.new(2016, 2, 10).weeks_between(Date.new(2017, 2, 10)) # => 52
Date.new(2017, 2, 10).weeks_between(Date.new(2016, 2, 10)) # => 52

require "general_time"

Time.new(2017, 2, 10, 10, 10, 10).weeks_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0

Time.new(2017, 2, 10, 9, 10, 10).weeks_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0
Time.new(2017, 2, 10, 10, 10, 10).weeks_between(Time.new(2017, 2, 10, 9, 10, 10)) # => 0

Time.new(2017, 2, 3, 10, 10, 10).weeks_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 1
Time.new(2017, 2, 10, 10, 10, 10).weeks_between(Time.new(2017, 2, 3, 10, 10, 10)) # => 1
Time.new(2016, 12, 9, 10, 10, 10).weeks_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 9
Time.new(2017, 2, 10, 10, 10, 10).weeks_between(Time.new(2016, 12, 9, 10, 10, 10)) # => 9
Time.new(2016, 2, 10, 10, 10, 10).weeks_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 52
Time.new(2017, 2, 10, 10, 10, 10).weeks_between(Time.new(2016, 2, 10, 10, 10, 10)) # => 52

#months_between

Formula: ((date2.month - date1.month) + 12 * (date2.year - date1.year)).abs

require "date"
require "general_time"

Date.new(2017, 2, 10).months_between(Date.new(2017, 2, 10)) # => 0

Date.new(2017, 2, 9).months_between(Date.new(2017, 2, 10)) # => 0
Date.new(2017, 2, 10).months_between(Date.new(2017, 2, 9)) # => 0

Date.new(2017, 1, 10).months_between(Date.new(2017, 2, 10)) # => 1
Date.new(2017, 2, 10).months_between(Date.new(2017, 1, 10)) # => 1
Date.new(2016, 5, 10).months_between(Date.new(2017, 2, 10)) # => 9
Date.new(2017, 2, 10).months_between(Date.new(2016, 5, 1)) # => 9
Date.new(2016, 2, 10).months_between(Date.new(2017, 2, 10)) # => 12
Date.new(2017, 2, 10).months_between(Date.new(2016, 2, 10)) # => 12

require "general_time"

Time.new(2017, 2, 10, 10, 10, 10).months_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0

Time.new(2017, 2, 9, 10, 10, 10).months_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0
Time.new(2017, 2, 10, 10, 10, 10).months_between(Time.new(2017, 2, 9, 10, 10, 10)) # => 0

Time.new(2017, 1, 10, 10, 10, 10).months_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 1
Time.new(2017, 2, 10, 10, 10, 10).months_between(Time.new(2017, 1, 10, 10, 10, 10)) # => 1
Time.new(2016, 5, 10, 10, 10, 10).months_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 9
Time.new(2017, 2, 10, 10, 10, 10).months_between(Time.new(2016, 5, 1, 10, 10, 10)) # => 9
Time.new(2016, 2, 10, 10, 10, 10).months_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 12
Time.new(2017, 2, 10, 10, 10, 10).months_between(Time.new(2016, 2, 10, 10, 10, 10)) # => 12

#years_between

Formula: (date2.year - date1.year).abs

require "date"
require "general_time"

Date.new(2017, 2, 10).years_between(Date.new(2017, 2, 10)) # => 0

Date.new(2017, 1, 10).years_between(Date.new(2017, 2, 10)) # => 0
Date.new(2017, 2, 10).years_between(Date.new(2017, 1, 10)) # => 0

Date.new(2016, 2, 10).years_between(Date.new(2017, 2, 10)) # => 1
Date.new(2017, 2, 10).years_between(Date.new(2016, 2, 10)) # => 1
Date.new(2008, 2, 10).years_between(Date.new(2017, 2, 10)) # => 9
Date.new(2017, 2, 10).years_between(Date.new(2008, 2, 10)) # => 9

require "general_time"

Time.new(2017, 2, 10, 10, 10, 10).years_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0

Time.new(2017, 1, 10, 10, 10, 10).years_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 0
Time.new(2017, 2, 10, 10, 10, 10).years_between(Time.new(2017, 1, 10, 10, 10, 10)) # => 0

Time.new(2016, 2, 10, 10, 10, 10).years_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 1
Time.new(2017, 2, 10, 10, 10, 10).years_between(Time.new(2016, 2, 10, 10, 10, 10)) # => 1
Time.new(2008, 2, 10, 10, 10, 10).years_between(Time.new(2017, 2, 10, 10, 10, 10)) # => 9
Time.new(2017, 2, 10, 10, 10, 10).years_between(Time.new(2008, 2, 10, 10, 10, 10)) # => 9

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/bogdanvlviv/general_time. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

Code Status

License

The gem is available as open source under the terms of the MIT License.