Journal Clock measures how long 4,252 journals take to accept and publish articles, from the dates publishers deposit with PubMed — with the sample size behind every figure, published exclusion rules and a coverage check for every journal and year. In a check of 200 randomly selected articles against the publisher's own dates, 100.0% matched exactly (153 of 153 that could be read). Organisations can get the same measured data as a report, a feed or a campus tool.
for journal editors and publishers
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No journal or publisher can pay to change, remove or improve its figures. Organisations may buy reports about their own journal; the public numbers stay the same for everyone.
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Data sources. Submission, acceptance and publication dates: Courtesy of the U.S. National Library of Medicine (PubMed, entries through Sep 15, 2026). NLM does not endorse Journal Clock, and these figures may not reflect the most current PubMed data. Journal fees and open-access listing: DOAJ (CC0, retrieved Sep 16, 2026). Fees paid by institutions: OpenAPC (Open Database License, retrieved Sep 16, 2026). Retractions: Retraction Watch Database via Crossref (retrieved Sep 16, 2026). Journal identifiers and topics: OpenAlex (CC0). Currency conversion: ECB reference rates (Sep 15, 2026). How these numbers are calculated · For organisations.