Date and Time Processing Gems

#	Total Rank	Daily Rank	Name	Summary
1	17	12	tzinfo	TZInfo provides access to time zone data and allows times to be converted using time zo...
2	219	337	chronic	Chronic is a natural language date/time parser written in pure Ruby.
3	806	618	ice_cube	ice_cube is a recurring date library for Ruby. It allows for quick, programatic expans...
4	978	987	business_time	Have you ever wanted to do things like "6.business_days.from_now" and have weekends and...
5	1,072	1,082	groupdate	The simplest way to group temporal data
6	1,167	1,136	validates_timeliness	Adds validation methods to ActiveModel for validating dates and times. Works with multi...
7	1,230	1,413	american_date	American style month/day/year date parsing for ruby 1.9
8	1,886	1,668	local_time	Rails engine for cache-friendly, client-side local time
9	2,401	3,551	time_diff	It returns a hash file with the difference in terms of year, month, week, day, hour, mi...
10	3,652	2,867	biz	Time calculations using business hours.
11	4,904	5,237	by_star	ActiveRecord and Mongoid extension for easier date scopes and time ranges
12	5,781	5,237	montrose	A library for specifying, quering, and enumerating recurring events for calendars in Ruby.
13	8,506	14,832	time-lord	Managing concepts of time and space in Ruby
14	11,973	9,894	jekyll-timeago	A Ruby library to compute distance of dates in words. Originally built for Jekyll, as a...
15	17,412	21,381	opening_hours_converter	Datetime range to openinghours, openinghours to datetime range. Very strongly inspired ...
16	117,538	87,174	yymmdd	Tiny DSL for idiomatic parsing and formatting of numeric date components.