TimeWithZone

Handle time with zone without ActiveSupport, or ENV['TZ'] for thread-safety.

Installation

Add this line to your application's Gemfile:

gem 'time_with_zone'

And then execute:

$ bundle

Or install it yourself as:

$ gem install time_with_zone

Usage

Assume your localtime zone is +09:00 (Asia/Tokyo):

require 'time'

Time.strptime('2015-01-01', '%Y-%m-%d')
#=> 2015-01-01 00:00:00 +0900

But, you want to get time in +08:00 (Asia/Taipei) as 2015-01-01 00:00:00 +0800.

If the timezone format is in numeric formats such as [+-]HH:MM, [+-]HHMM, [+-]HH, you may use %z of strptime:

require 'time'

date = '2015-01-01'
timezone = '+08:00'
Time.strptime("#{date} #{timezone}", '%Y-%m-%d %z')
#=> 2015-01-01 00:00:00 +0800

However, if the timezone format is in the Region/Zone format such as Asia/Taipei, %Z or %z won't work. So, use time_with_zone gem as:

require 'time_with_zone'

TimeWithZone.strptime_with_zone('2015-01-01', '%Y-%m-%d', 'Asia/Taipei')
#=> 2015-01-01 00:00:00 +0800

TimeWithZone gem accepts numeric formats, and the Region/Zone format, and some of short-abbreviations of timezone such as UTC.

Documents

Available methods are:

• strptime_with_zone(str, format, timezone)

• parse_with_zone(str, timezone)

• set_zone(time, timezone)

• zone_offset(timezone, time = nil)

• strptime_with_zone_offset(str, format, zone_offset)

• parse_with_zone_offset(str, zone_offset)

• set_zone_offset(time, zone_offset)

See docs for details

Development

Run test

bundle exec rake

Generate yardoc

bundle exec yard

Release

bundle exec rake release

CHANGELOG

CHANGELOG.md

Contributing

Bug reports and pull requests are welcome on GitHub at github.com/sonots/time_with_zone. 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.

License

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