Date and Time Processing Gems

#	Total Rank	Daily Rank	Name	Summary
1	13	17	tzinfo	TZInfo provides access to time zone data and allows times to be converted using time zo...
2	379	567	chronic	Chronic is a natural language date/time parser written in pure Ruby.
3	676	591	ice_cube	ice_cube is a recurring date library for Ruby. It allows for quick, programatic expans...
4	1,233	1,428	business_time	Have you ever wanted to do things like "6.business_days.from_now" and have weekends and...
5	1,297	779	groupdate	The simplest way to group temporal data
6	1,675	1,598	validates_timeliness	Adds validation methods to ActiveModel for validating dates and times. Works with multi...
7	2,011	2,022	american_date	American style month/day/year date parsing for ruby 1.9+
8	2,321	1,985	local_time	Rails engine for cache-friendly, client-side local time
9	3,319	4,180	biz	Time calculations using business hours.
10	3,333	2,783	time_diff	It returns a hash file with the difference in terms of year, month, week, day, hour, mi...
11	3,706	2,722	working_hours	A modern ruby gem allowing to do time calculation with working hours.
12	4,442	3,228	montrose	A library for specifying, quering, and enumerating recurring events for calendars in Ruby.
13	4,473	4,189	recurrence	A simple library to handle recurring events
14	5,589	5,320	by_star	ActiveRecord and Mongoid extension for easier date scopes and time ranges
15	10,293	8,043	jekyll-timeago	A Ruby library to compute distance of dates in words. Originally built for Jekyll, as a...
16	12,742	24,092	opening_hours_converter	Datetime range to opening hours, opening hours to datetime range. Very strongly inspire...
17	16,983	74,401	time-lord	Managing concepts of time and space in Ruby
18	28,016	33,749	runt	Runt is a Ruby implementation of temporal patterns by Martin Fowler. Runt provides an A...
19	128,974	74,401	yymmdd	Tiny DSL for idiomatic parsing and formatting of numeric date components.