Timestamp converter
Epoch to human date and back, seconds or milliseconds, UTC and local.
Questions the robot gets a lot
How does it know if my number is seconds or milliseconds?
Values with 13 or more digits are treated as milliseconds and shorter ones as seconds, which matches how epoch timestamps appear in practice. Both readings are shown so you can double-check.
Which date formats can I paste?
Anything your browser's date parser accepts: ISO 8601, RFC 2822, and most common human formats. The current-time button also fills in now for quick reference.