Pendulum
Python datetimes made easy.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Pendulum?
Pendulum is a Python library that extends the datetime module to provide an easier and more powerful way of working with dates and times. It simplifies common operations like time zone conversions, formatting, and parsing.
Key differentiator
“Pendulum stands out by extending Python's datetime capabilities with a more user-friendly and powerful API, making date and time operations simpler and more intuitive.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
Pendulum is a Python-specific library, which limits its utility in polyglot environments or for developers who need cross-language consistency.
Historical version updates have included significant API changes that require substantial code modifications (e.g., v0.1 to v2.0).
The official documentation provides basic usage but lacks detailed examples for complex scenarios, such as handling daylight saving time transitions.
Pendulum's additional features and flexibility can introduce performance penalties in high-frequency operations, though this may not be noticeable for most applications.
Fit analysis
Who is it for?
✓ Best for
Python developers who need to handle complex date and time operations with ease
Projects requiring accurate time zone conversions and formatting
Applications that benefit from simplified datetime manipulation methods
✕ Not a fit for
Developers working in languages other than Python
Scenarios where the built-in datetime module is sufficient without additional complexity
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Integrations
Next step
Get Started with Pendulum
Step-by-step setup guide with code examples and common gotchas.