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All Projects → infused → ziptz

infused / ziptz

Licence: MIT license
Get the time zone and daylight saving time support for any US ZIP code

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ruby
36898 projects - #4 most used programming language

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Ziptz

Version Build Status Total Downloads License

Get time zone, daylight saving time, and base offset for any US ZIP code.

ZIP codes are up to date as of August 2022.

Compatibility

Ziptz is tested to work with the following versions of Ruby:

  • Ruby 2.3.x, 2.4.x, 2.5.x, 2.6.x, 2.7.x, 3.x

Installation

Add the gem to your Gemfile:

gem 'ziptz'

Usage

Get the time zone name for any ZIP code:

z = Ziptz.new
z.time_zone_name('97213') #=> "America/Los_Angeles"

Get the time zone offset for any ZIP code:

z.time_zone_offset('97213') #=> -28800

Note that offsets do not include daylight saving time.

Determine if the ZIP code uses Daylight Saving Time:

z.time_zone_uses_dst?('97213') #=> true

Get all the zip codes in a time zone:

z.zips('Pacific/Chuuk') #=> ["96942", "96943"]

Supported Time Zones

  • America/Adak
  • America/Anchorage
  • America/Boise
  • America/Chicago
  • America/Denver
  • America/Detroit
  • America/Indiana/Indianapolis
  • America/Indiana/Knox
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Tell_City
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Juneau
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Los_Angeles
  • America/Menominee
  • America/Metlakatla
  • America/New_York
  • America/Nome
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Phoenix
  • America/Puerto_Rico
  • America/Sitka
  • America/St_Thomas
  • America/Yakutat
  • Pacific/Chuuk
  • Pacific/Guam
  • Pacific/Honolulu
  • Pacific/Kosrae
  • Pacific/Kwajalein
  • Pacific/Majuro
  • Pacific/Pago_Pago
  • Pacific/Palau
  • Pacific/Pohnpei
  • Pacific/Saipan
  • Pacific/Wake

Note that APO/FPO zip codes will not return a known time zone offset.

Prefer raw data?

If you would prefer raw data instead of a gem, see my ZIP Code Time Zones product on AWS Data Exchange to subscribe.

Version 3 breaking changes

  • APO, DPO, and FPO zip codes are no longer included, because they are non-geographic.
  • Time zone offsets are now specified in seconds instead of hours.
  • Time zone are now more granular. The full list of time zones is:
    • America/Adak
    • America/Anchorage
    • America/Boise
    • America/Chicago
    • America/Denver
    • America/Detroit
    • America/Indiana/Indianapolis
    • America/Indiana/Knox
    • America/Indiana/Marengo
    • America/Indiana/Petersburg
    • America/Indiana/Tell_City
    • America/Indiana/Vevay
    • America/Indiana/Vincennes
    • America/Indiana/Winamac
    • America/Juneau
    • America/Kentucky/Louisville
    • America/Kentucky/Monticello
    • America/Los_Angeles
    • America/Menominee
    • America/Metlakatla
    • America/New_York
    • America/Nome
    • America/North_Dakota/Beulah
    • America/North_Dakota/Center
    • America/North_Dakota/New_Salem
    • America/Phoenix
    • America/Puerto_Rico
    • America/Sitka
    • America/St_Thomas
    • America/Yakutat
    • Pacific/Chuuk
    • Pacific/Guam
    • Pacific/Honolulu
    • Pacific/Kosrae
    • Pacific/Kwajalein
    • Pacific/Majuro
    • Pacific/Pago_Pago
    • Pacific/Palau
    • Pacific/Pohnpei
    • Pacific/Saipan
    • Pacific/Wake

Version 2 breaking changes

Time zone names now reflect standard tz-database names.

V1 Name V2 Name
Atlantic America/Puerto_Rico
Eastern America/New_York
Central America/Chicago
Mountain America/Denver
Pacific America/Los_Angeles
Hawaii-Aleutian Islands Pacific/Honolulu or America/Adak
American Samoa Pacific/Pago_Pago
Marshall Islands Pacific/Majuro
Guam Pacific/Guam
Palau Pacific/Palau
Micronesia Pacific/Pohnpei

License

Copyright (c) 2015-2022 Keith Morrison <[email protected]>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Note that the project description data, including the texts, logos, images, and/or trademarks, for each open source project belongs to its rightful owner. If you wish to add or remove any projects, please contact us at [email protected].