Date and Time Processing Gems

#	Total Rank	Daily Rank	Name	Summary
1	13	20	tzinfo	TZInfo provides access to time zone data and allows times to be converted using time zo...
2	399	607	chronic	Chronic is a natural language date/time parser written in pure Ruby.
3	608	592	ice_cube	ice_cube is a recurring date library for Ruby. It allows for quick, programatic expans...
4	1,197	548	groupdate	The simplest way to group temporal data
5	1,232	2,086	business_time	Have you ever wanted to do things like "6.business_days.from_now" and have weekends and...
6	1,669	2,279	validates_timeliness	Adds validation methods to ActiveModel for validating dates and times. Works with multi...
7	2,051	4,083	american_date	American style month/day/year date parsing for ruby 1.9+
8	2,270	2,347	local_time	Rails engine for cache-friendly, client-side local time
9	3,180	1,259	time_diff	It returns a hash file with the difference in terms of year, month, week, day, hour, mi...
10	3,374	4,162	biz	Time calculations using business hours.
11	3,418	1,268	working_hours	A modern ruby gem allowing to do time calculation with working hours.
12	4,373	4,340	montrose	A library for specifying, quering, and enumerating recurring events for calendars in Ruby.
13	4,513	6,450	recurrence	A simple library to handle recurring events
14	5,677	7,001	by_star	ActiveRecord and Mongoid extension for easier date scopes and time ranges
15	10,612	12,289	jekyll-timeago	A Ruby library to compute distance of dates in words. Originally built for Jekyll, as a...
16	13,282	42,533	opening_hours_converter	Datetime range to opening hours, opening hours to datetime range. Very strongly inspire...
17	17,885	17,234	time-lord	Managing concepts of time and space in Ruby
18	28,938	25,816	runt	Runt is a Ruby implementation of temporal patterns by Martin Fowler. Runt provides an A...
19	131,271	87,723	yymmdd	Tiny DSL for idiomatic parsing and formatting of numeric date components.