---
id: croniter
version: "6.2.4"
license: MIT
license_treatment: permissive
maintenance: active
---

# croniter — croniter provides iteration for datetime object with cron like format

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install croniter
uv add croniter
poetry add croniter

## Description

Introduction
============

.. contents::


croniter provides iteration for the datetime object with a cron like format.

::

                          _ _
      ___ _ __ ___  _ __ (_) |_ ___ _ __
     / __| '__/ _ \| '_ \| | __/ _ \ '__|
    | (__| | | (_) | | | | | ||  __/ |
     \___|_|  \___/|_| |_|_|\__\___|_|


Website: https://github.com/pallets-eco/croniter

Build Badge
===========
.. image:: https://github.com/pallets-eco/croniter/actions/workflows/cicd.yml/badge.svg
    :target: https://github.com/pallets-eco/croniter/actions/workflows/cicd.yml


Pallets Community Ecosystem
===========================

.. important::
   This project is part of the Pallets Community Ecosystem. Pallets is the open
   source organization that maintains Flask; Pallets-Eco enables community
   maintenance of Flask extensions. If you are interested in helping maintain
   this project, please reach out on the `Pallets Discord server
   <https://discord.gg/pallets>`_.


Usage
============

A simple example::

    >>> from croniter import croniter
    >>> from datetime import datetime
    >>> base = datetime(2010, 1, 25, 4, 46)
    >>> iter = croniter('*/5 * * * *', base)  # every 5 minutes...

## AI interpretation — verify before relying

croniter iterates over datetime objects using cron expression syntax, calculating next and previous occurrences of scheduled times. It supports standard cron fields plus extensions like last-day-of-month and nearest-weekday matching.

Verdict: croniter is a well-maintained, actively developed library with zero known vulnerabilities and minimal dependencies. Its MIT license and low install friction make it suitable for production scheduling tasks. The package is part of the Pallets Community Ecosystem and supports current Python versions (3.9–3.13).

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