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Focus and Scope

The Journal of Circadian Rhythms is an open access, peer-reviewed online journal that publishes research articles dealing with circadian and nycthemeral (daily) rhythms in living organisms, including processes associated with photoperiodism and daily torpor, whether metabolic or behavioral.

The Journal of Circadian Rhythms aims to include both basic and applied research at any level of biological organization (molecular, cellular, organic, organismal, and populational). Studies of daily rhythms in environmental factors that directly affect circadian rhythms are also pertinent to the journal's mission.

The study of circadian rhythms has experienced enormous growth in the recent past. From fungi and plants to birds and mammals, and from molecules and cells to organisms and populations, research on circadian rhythms has advanced at full speed into the 21st century. The Journal of Circadian Rhythms provides the first open access journal dedicated to this expanding field.

Publication Frequency

The journal is published online as a continuous volume and issue throughout the year. Articles are made available as soon as they are ready.

Special collections of articles are welcomed and will be published as part of the normal issue, but also within a separate collection page.

Open Access Policy

This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. There is no embargo on the journal’s publications. Submission and acceptance dates, along with publication dates, are made available on the PDF format for each paper.

Authors of articles published remain the copyright holders and grant third parties the right to use, reproduce, and share the article according to the Creative Commons license agreement.

Authors are encouraged to publish their data in recommended repositories. For a list of generic and subject specific repositories that meet our peer review criteria, see here.

Archiving Policy

The journal’s publisher, Ubiquity Press, focuses on making content discoverable and accessible through indexing services. Content is also archived around the world to ensure long-term availability.

The Journal of Circadian Rhythms is indexed in:

PubMed, the Web of Science/ThomsonScopusDirectory of Open Access Journals (DOAJ), Chronos, Center for Open Science, OpenAIRE, ExLibris, Journal TOCs, CNKI, sparrho, Norwegian Register for Scientific Journals, Series and PublishersCrossRef, JISC KB+, SHERPA RoMEOEBSCOHostGoogle Scholar and Cengage Learning/Gale. In addition, all journals are available for harvesting via OAI-PMH.

JCR's 2021 Scopus CiteScore is 4.5. The journal is at the 39th percentile (15/24) of Endocrine and Autonomic Systems journals.

To ensure permanency of all publications, this journal also utilises CLOCKSS, and LOCKSS archiving systems to create permanent archives for the purposes of preservation and restoration.

If the journal is not indexed by your preferred service, please let us know by emailing or alternatively by making an indexing request directly with the service.

Journal Statistics

Core journal statistics for the 2021 volume:

Submissions received19
Reviews requested234
Reviews received310
Total Rejections46
...of which, Desk rejects54
Acceptance rate754%
Time from submission to publication8123 days


1Number of new articles received by the journal
2Number of peer review invitation emails that were sent out
3Number of completed peer review reports received
4Total number of articles rejected (including desk rejects)
5Number of articles rejected prior to peer review
6Number of articles that received a 'Accept for publication' decision
7Number of acceptances, as a percentage, against the total number of final decisions
8'Mean' average from submission to publication for all publications in the volume

Advertisement policy

The journal only displays advertisements that are of relevance to its scope and will be of interest to the readership (e.g. upcoming conferences). All advertising space is provided free of charge and the editor and publisher have the right to decline or withdraw adverts at any point. Adverts will include a text heading to make it clear that they are adverts not related to the journal.

If you wish to propose a potential advert then please contact the editorial team. All advert images will have to be provided to the publisher.

Annotation and post-publication comment

The journal platform permits readers to leave comments on the publication page, via the Disqus service. Readers will need a Disqus account to leave comments. Comments may be moderated by the journal, however, if they are non-offensive and relevant to the publication subject, comments will remain online without edit.

The journal platform also includes in-browser annotation and text highlighting options on full text formats via Readers will require a account to create annotations, and will have the option to make these publicly available, available to a group, or private.

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