Convert between Unix timestamps and human dates online — epoch to date and back.
Convert a Unix timestamp (seconds or milliseconds) to a readable date, or a date string to a timestamp. The tool auto-detects which you entered and shows ISO, UTC and epoch forms.
Both — the tool decides by digit count (10-digit = seconds, 13-digit = milliseconds) and shows both unix and unixMillis.
Output is in UTC (ISO 8601 and RFC 1123), which is unambiguous for storage and APIs.