dateutil VS pytz

Compare dateutil vs pytz and see what are their differences.

dateutil

Useful extensions to the standard Python datetime features (by dateutil)

pytz

pytz Python historical timezone library and database (by stub42)
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dateutil pytz
3 2
2,242 309
1.5% -
6.0 7.1
about 2 months ago 3 months ago
Python C
GNU General Public License v3.0 or later MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

dateutil

Posts with mentions or reviews of dateutil. We have used some of these posts to build our list of alternatives and similar projects.

pytz

Posts with mentions or reviews of pytz. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-12.
  • Pytz: The Fastest Footgun in the West
    2 projects | news.ycombinator.com | 12 May 2023
    Well, pytz actually is technically flawed at the moment because it cannot read TZif Version 2+ files, so it breaks for dates >2038 (and it would break if you tried to point it at system data generated with zic's "slim" mode), see this: https://github.com/stub42/pytz/issues/48

    But you are right that pandas' use of pytz is benign and as far as I know doesn't suffer the same usability issues.

  • Searching for a date/time library with full historical TZ data and adjustments given epoch
    2 projects | /r/learnpython | 8 Sep 2022
    If I understand this correctly from the documentation, pytz (or rather the tz database for which the library provides an interface) accounts for political shifts/changes in time zone data / DST.

What are some alternatives?

When comparing dateutil and pytz you can also consider the following projects:

arrow - 🏹 Better dates & times for Python

Pendulum - Python datetimes made easy

Maya - Datetimes for Humans™

moment - A Python library for dealing with dates

delorean - Delorean: Time Travel Made Easy

PyTime - PyTime is an easy-use Python module which aims to operate date/time/datetime by string.