Index time dataset of early access articles in 2019-2022

This dataset involves the index time of online early access articles and the corresponding record numbers and distributions. Based on 258,299 Article and Review records of early access from 2019 to 2022 in the Web of Science Core Collection (WoS), through the search of Publication Date and Index Date, the index time and the corresponding record numbers were obtained for each year on a monthly basis. Meanwhile, through results analysis of the database, the list of publication title (journal), the list of publisher, the list of WoS categories, and the list of index types corresponding to each index time for each year were obtained. This dataset consists of a total of 4 folders, each named as the early access year, and 1788 documents in xls, each named as "Index Time - Analysis Content - Early Access Date".