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Deployed on AWS
This data set provides the IANA time zone for each US Postal Service ZIP Code. It covers the entire United States and its territories. Updated monthly. Available as CSV, JSON, XML, and SQLite.
Overview
Overview
This data set provides the IANA time zone for each US Postal Service ZIP Code. It covers the entire United States and its territories. Updated monthly.
Last updated December 1, 2025. The record count is 38,930.
Dataset
This data is provided in 4 formats: CSV, JSON, XML, and SQLite.
All formats provide these 3 data points:
- ZipCode: 5-digit ZIP Code
- TimeZone: The official IANA time zone name. Possible values:
- 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
- ObservesDST: whether the area observes Daylight Saving Time. Possible values:
- true
- false
Excluded ZIP Codes
Excludes APO, DPO, FPO, and unique (single-entity) ZIP codes because they are non-geographic.
Details
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Dimension | Description | Cost/month |
|---|---|---|
Product Access | Dimension that grants access to the product for subscribers. | $20.00 |
Vendor refund policy
Refunds are not offered for this product.
Legal
Vendor terms and conditions
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Content disclaimer
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Delivery details
AWS Data Exchange (ADX)
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Additional details
You will receive access to the following data sets.
Data set name | Type | Historical revisions | Future revisions | Sensitive information | Data dictionaries | Data samples |
|---|---|---|---|---|---|---|
ZIP-TZ-CSV | All historical revisions | All future revisions | Not included | Not included | ||
ZIP-TZ-JSON | All historical revisions | All future revisions | Not included | Not included | ||
ZIP-TZ-XML | All historical revisions | All future revisions | Not included | Not included | ||
ZIP-TZ-SQLITE | All historical revisions | All future revisions | Not included | Not included |
Resources
Vendor resources
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