DayFinder is a ruby gem. It is used to find the weekday of a given date.

DayFinder.find(day,month,year)
DayFinder.findAll(month,year,weekday)

require 'DayFinder'
day=DayFinder.find 15,8,1947
puts day
#output
# Friday

require 'DayFinder'
days=DayFinder.findAll 11,2021,"sunday"
print days
#output
# [7, 14, 21, 28]

gem 'DayFinder'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install DayFinder

Bug reports and pull requests are welcome on GitHub at https://github.com/freakflames29/DayFinder. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

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

Everyone interacting in the DayFinder project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.