aiozoneinfo
Tools to fetch zoneinfo with asyncio
Decision gist · record as of 2026-08-14
Yes, if you are building asyncio applications that need timezone lookups and want to avoid event loop blocking. The low install friction, permissive license, and active maintenance make it a safe choice. However, the Pre-Alpha status and small user base mean you should test it in your specific use case before relying on it in production.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later.
- Low install friction with a pure Python wheel and minimal dependencies.
- Actively maintained with a recent commit on 2026-08-10, though marked Pre-Alpha.
License · maintenance · safety
Apache-2.0 (permissive) — Licensed under Apache-2.0 (permissive), allowing commercial and private use with minimal restrictions.
last release 2025-02-04 (556 days) · last repo commit 2026-08-10 · 2 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 603,896 downloads/mo, #5,807 on PyPI
Alternatives
Verify before relying
pip install aiozoneinfo
import asyncio
from aiozoneinfo import async_get_time_zone
async def main():
zone_info = await async_get_time_zone("America/Los_Angeles")
asyncio.run(main())- Whether the internal cache persists across application restarts or is memory-only
- Performance characteristics compared to synchronous ZoneInfo access
- Thread-safety guarantees when used in multi-threaded contexts
What it is and what it does
aiozoneinfo wraps timezone data fetching for asyncio applications. It provides a single public method, `async_get_time_zone`, that retrieves ZoneInfo objects without blocking the event loop. The package depends on backports.zoneinfo and tzdata, and is designed for scenarios where timezone lookups might otherwise stall async code.
The package targets Python 3.9 through 3.13 and uses an executor to offload disk I/O when constructing new ZoneInfo objects, keeping the event loop responsive. This is most useful in async web services, background task runners, or other I/O-bound applications that need timezone information on demand.
Use it for
- Async web services that need to convert timestamps to user timezones without blocking request handlers
- Background task schedulers that fetch timezone data for scheduled jobs across multiple regions
- Real-time data processing pipelines that enrich events with timezone-aware timestamps
- Microservices handling timezone-dependent business logic in concurrent request contexts
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building asyncio applications that need timezone lookups and want to avoid event loop blocking.
The low install friction, permissive license, and active maintenance make it a safe choice. However, the Pre-Alpha status and small user base mean you should test it in your specific use case before relying on it in production.
Install
aiozoneinfo on PyPI
Before you install
Low install friction with a pure Python wheel and minimal dependencies. Actively maintained with a recent commit on 2026-08-10, though marked Pre-Alpha.
Requires Python 3.9 or later.
License in practice
Licensed under Apache-2.0 (permissive), allowing commercial and private use with minimal restrictions.
Quickstart
pip install aiozoneinfo
import asyncio
from aiozoneinfo import async_get_time_zone
async def main():
zone_info = await async_get_time_zone("America/Los_Angeles")
asyncio.run(main())Verify before relying
- Whether the internal cache persists across application restarts or is memory-only
- Performance characteristics compared to synchronous ZoneInfo access
- Thread-safety guarantees when used in multi-threaded contexts
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesbackports.zoneinfotzdata |
| Maintenance | Actively maintained 556 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 603,896 / month, #5,807 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 2 - Pre-AlphaIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9Topic :: Software Development :: Libraries |
Evidence: aiozoneinfo-0.2.3-py3-none-any.whl
Tags
Let your AI agent find packages like this
Example. Real query, live index.
You found this page by searching. An agent finds it by wishing: SkillFed indexes 14,416 PyPI packages by what they can do, searchable in plain language.
wish › “async timezone lookup”
- aiozoneinfoFetches timezone information asynchronously using asyncio, avoiding…
- tzfpyConverts geographic coordinates (longitude/latitude) to timezone…
- tzwhereLooks up the IANA timezone name for a given latitude and longitude…
Give your agent the search over MCP, or paste the wish link into any chat.
More Libraries packages
urllib3 is an HTTP client library that provides thread-safe connection pooling, SSL/TLS verification, multipart file uploads, request retries, compression support, and proxy handling for Python applications.
Requests is a Python HTTP library that simplifies sending HTTP/1.1 requests with automatic handling of headers, authentication, cookies, and response parsing.
Pluggy provides a plugin system that lets you define hook specifications and register implementations to be called in sequence, enabling extensible Python applications without tight coupling.
Install it if you're building an extensible application or framework.
Provides parsing, arithmetic, and recurrence rule computation for dates and times, with timezone support and iCalendar RFC compliance.
Install it if you need to parse flexible date strings, compute relative dates, handle timezones, or work with recurrence rules—it's the de facto choice for these tasks.
Six provides utility functions to write Python code that runs on both Python 2.7 and Python 3.3+, smoothing over language differences between the two versions.
pytest is a testing framework that lets you write test functions using plain assert statements and automatically discovers and runs them, with detailed failure reporting.
See also aiooui · aioopenexchangerates · async-interrupt · aiousbwatcher · aiodhcpwatcher · tzlocal · backports.zoneinfo · pyserial-asyncio · django-timezone-field · pytzdata