Issues

• Duration pickle and shallow copy lose year and month components

  python-pendulum/pendulum#1023 · Filter by author GreedyC opened on Oct 2, 2026

• py-pendulum 3.2.0 has a build error against the current tool chain

  python-pendulum/pendulum#1010 · Filter by author Schamschula opened on Sep 16, 2026
  5

• Release a version that supports Python 3.15

  python-pendulum/pendulum#995 · Filter by author DanielNoord opened on Aug 19, 2026
  1

• pendulum.now() returning None when executed via Slurm

  python-pendulum/pendulum#989 · Filter by author jsheckar opened on Jul 27, 2026

• from_format spanish cause error (copied from google examples)

  python-pendulum/pendulum#971 · Filter by author daniv opened on Jun 15, 2026

• Document ISO 8601 duration parsing in pendulum.parse()

  python-pendulum/pendulum#961 · Filter by author aeroyorch opened on Apr 12, 2026

• from_timestamp fails with timestamps earlier than 12h before unix epoch

  python-pendulum/pendulum#956 · Filter by author dr-eme opened on Apr 3, 2026
  1

• parse fails with subsecond decimals with more than 9 digits

  python-pendulum/pendulum#935 · Filter by author dr-eme opened on Jan 29, 2026

• parse_dt method that specifically returns a DateTime

  enhancement
  python-pendulum/pendulum#917 · Filter by author kerrickstaley opened on Sep 12, 2025
  1

• Incrementing by day fails for timezones like Chile/Continental where spring forward occurs at midnight. Works for Europe.

  python-pendulum/pendulum#915 · Filter by author quoth-le-corbeau opened on Aug 27, 2025
  1

• pickling doesn't preserve DST offset

  python-pendulum/pendulum#908 · Filter by author ruaridhw opened on Aug 11, 2025
  1

• Add tests comparing pure-Python and Rust functions

  python-pendulum/pendulum#907 · Filter by author Secrus opened on Aug 2, 2025
  

• Pendulum interval seems incompatible with Python native datetime

  bug
  python-pendulum/pendulum#906 · Filter by author ayorgo opened on Aug 1, 2025 · Pendulum 3.3
  2

• now ignores TZ environment variable

  python-pendulum/pendulum#905 · Filter by author ariebovenberg opened on Jul 26, 2025 · Pendulum 3.3
  2

• Allow pure-Python, rust-free build

  python-pendulum/pendulum#904 · Filter by author barracuda156 opened on Jul 25, 2025
  11

• precise_diff is wrong when using Rust library

  python-pendulum/pendulum#901 · Filter by author baubie opened on Jun 2, 2025 · Pendulum 3.3

• DateTime of version 3.0+ cannot be pickled without timezone

  python-pendulum/pendulum#899 · Filter by author georgpfolz opened on May 14, 2025 · Pendulum 3.3
  1

• parse of date with duration cause error

  python-pendulum/pendulum#881 · Filter by author mlongtin0 opened on Mar 17, 2025
  2

• naive DateTime.diff fails when the input is a naive datetime object, as pendulum.instance converts it to a pendulum.DateTime with UTC tz

  python-pendulum/pendulum#880 · Filter by author NodeJSmith opened on Mar 12, 2025

• Pendulum.timezones in release notes do not reflect the code and not otherwise documented

  python-pendulum/pendulum#877 · Filter by author Evan0000000000 opened on Jan 22, 2025
  1

• Durations of full days have 0 total_seconds (PyPy)

  python-pendulum/pendulum#876 · Filter by author tammoippen opened on Jan 22, 2025

• [META] Move from master branch to main

  python-pendulum/pendulum#873 · Filter by author Secrus opened on Jan 15, 2025
  1

• Feature Request: Calendar Conversion

  python-pendulum/pendulum#856 · Filter by author Heshmatkhah opened on Nov 1, 2024
  1

• Comparing DateTimes before- and after-the-fold returns incorrect result

  python-pendulum/pendulum#855 · Filter by author itaiperi opened on Oct 30, 2024

• fold value behaves differently for different timedelta addition values

  python-pendulum/pendulum#853 · Filter by author Mcklmo opened on Oct 28, 2024
  1