WebKit / Chrome Timestamp Converter
Convert a WebKit / Chrome timestamp — microseconds since 1601 — to a readable date. Found in Chrome history, cookies and cache databases.
UTC / GMT
Your local time
ISO 8601
Relative
Unix seconds
Unix milliseconds
Current time updating:
How it works
Conversion: ms = webkit / 1000 − 11644473600000. The 1601 epoch matches Windows; only the unit differs.
Enter a value to convert it to a human-readable date, or click Use current time. Conversion is two-way and runs entirely in your browser.
Frequently asked questions
Where do WebKit timestamps appear?
Chromium-based browsers (Chrome, Edge, Brave) store times as microseconds since 1601-01-01 in the History and Cookies SQLite databases — popular in digital forensics.
How is it different from FILETIME?
Same 1601 epoch, but the unit is microseconds (1,000,000 per second) instead of 100-ns intervals.