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Academic Journal

Q4

Journal of Circadian Rhythms

Ubiquity Press

United KingdomEndocrine and Autonomic Systems (Q4); Physiology (Q4)ISSN-matched source record
Submission information ↗
Q4Ranking
—Impact Factor (year unverified)
36H-index (SCImago 2025)
0.218SJR (2025)
2003-2025Coverage

About Journal of Circadian Rhythms

Journal of Circadian Rhythms is a scholarly journal published by Ubiquity Press. SCImago 2025 lists it in Q4, with an SJR of 0.218 and H-index of 36.

Coverage: 2003-2025. Research categories: Endocrine and Autonomic Systems (Q4); Physiology (Q4).

Open-access policies and author information

Reported in the official DOAJ public CSV snapshot (2026-09-01), downloaded 2026-10-03. Record updated 2026-01-12. This snapshot does not establish today’s listing status or fee quotation.

Accepted manuscript languagesEnglish
Licence optionsCC BY
Peer-review processAnonymous peer review
APCDOAJ-reported APC: 578 GBP
Waiver policy reportedYes
Other fees reportedNo
Author retains unrestricted copyrightYes
Digital preservationCLOCKSS, LOCKSS
Reported submission-to-publication time12 weeks on average; not a guarantee
Openly licensed content since2004 (not the journal founding year)

Publisher policy links recorded by DOAJ

Source: DOAJ journal record. Journal metadata is distributed by DOAJ under CC0. Confirm current fees, tax, eligibility and waiver terms with the publisher.

Source-backed journal facts

ISSN(s)1740-3391
ISSN-L1740-3391
Source typeJournal
Publisher / hosting organisationUbiquity Press
Publisher country codeGB
Fully open access (OpenAlex)Yes
DOAJ flag (OpenAlex)Listed in OpenAlex metadata; confirm current status in DOAJ
Works recorded in OpenAlex192
Citations recorded in OpenAlex6,594
OpenAlex H-index41
Years represented in OpenAlex2002–2026 (not the founding or closing dates)

Topics in published research

Circadian rhythm and melatonin; Sleep and related disorders; Sleep and Wakefulness Research; Sleep and Work-Related Fatigue; Spaceflight effects on biology; Dietary Effects on Health.

OpenAlex classifies topics from published works. These topics are not the publisher’s official aims and scope.

Source: OpenAlex source record. Retrieved 2026-10-03. Source record updated 2026-10-02. OpenAlex metrics are different from SCImago metrics and the Clarivate Journal Impact Factor.

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