Dayjs is a minimalist JavaScript library that parses, validates, manipulates, and displays dates and times for modern browsers with largely immutable data structures. It's designed as a lighter-weight alternative to Moment.js, boasting a significantly smaller bundle size while retaining a familiar API. Dayjs supports internationalization via plugins, timezone support, and various formatting options, making it a versatile choice for virtually any project requiring date and time handling.
Dayjs release frequency is highly variable. There were bursts of releases in 2018 and 2019, with a peak in April 2018 (25 releases). Activity decreased significantly after 2021, with many months having no releases. August 2025 saw an unusual spike with 5 releases after an extended period of inactivity. Overall, the data shows an erratic release pattern.
Dayjs npm package downloads show a generally increasing trend from March 2024 to August 2025, peaking at 116.5 million in July 2025. However, September 2025 data is incomplete and shows a significantly lower download count of 4 million, which is expected due to the month being in progress.
