pytz
World timezone definitions for Python applications.
- Status
- Not yet determined
- Last checked
- Unverified
- License
- Open source
- Pricing
- Free tier · from $0
What it is
pytz brings the tz database into Python, providing world timezone definitions that are both modern and historical. This is crucial for developers needing accurate time zone handling in their applications.
pytz stands out by offering the most complete and up-to-date timezone data available for Python applications, making it indispensable for developers needing accurate timezone handling.
When it fits — and when it doesn’t
A good fit for
Developers working on applications that need to handle date and time across different regions accurately.
Projects involving historical data where timezone changes over years are important.
Applications needing precise timezone conversions for global operations.
Look elsewhere if
Real-time systems requiring ultra-low latency as pytz might add overhead due to its comprehensive nature.
Embedded systems with limited resources, where a lightweight alternative is preferred.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Frequent breaking changes between versions
Historical updates sometimes introduce API changes that require significant refactoring in applications using pytz.
- 02
Limited documentation and examples
The official documentation lacks comprehensive usage scenarios, making it hard for developers to understand best practices.
- 03
Performance overhead when handling large datasets
pytz can be slow when processing a high volume of timezone conversions, impacting real-time applications.
What it does well
Comprehensive timezone data including historical changes.
Integration with Python's datetime module for seamless usage.
Supports both modern and historical timezones.
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up pytz
Setup steps, common gotchas and what to check after 30 days.