Review:

Geonames Time Zone Services

overall review score: 4.2
score is between 0 and 5
GeoNames Time Zone Services provides an API that offers time zone information based on geographical location data, such as latitude and longitude. It integrates seamlessly with the GeoNames database, which contains comprehensive geographic information worldwide, allowing developers and organizations to retrieve accurate local time zone details for various purposes like mapping, scheduling, or time-sensitive applications.

Key Features

  • Global coverage of time zone data
  • Based on the extensive GeoNames database
  • Supports lookups via latitude/longitude coordinates
  • Provides current local time, GMT offset, and daylight saving information
  • Free to use with open licensing options
  • Accessible through simple RESTful API endpoints
  • Regularly updated geographic and time zone data

Pros

  • Comprehensive global coverage ensuring access to a wide range of geographic locations
  • Easy-to-use RESTful API makes integration straightforward for developers
  • Free to access with open data licensing, reducing costs for projects
  • Regularly maintained and updated data ensures accuracy
  • Useful for a variety of applications including travel, logistics, and scheduling

Cons

  • Limited detailed timezone information such as historical changes or political disputes
  • Dependent on the accuracy and completeness of the GeoNames database, which may have gaps in some regions
  • Potential rate limits or usage restrictions in free tier for high-volume applications
  • Lack of additional contextual data like local holidays or datetime format preferences

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Last updated: Thu, May 7, 2026, 03:22:30 AM UTC