Timestamp Converter
Convert Unix timestamps to human-readable dates and back. See UTC, local time, ISO 8601, and relative time. Real-time current timestamp display. Free, instant, runs in your browser.
FAQ
A Unix timestamp is the number of seconds since January 1, 1970 (UTC). It's widely used in programming, databases, APIs, and logging systems.
Yes! Enter a human-readable date or use the date picker to convert it to a Unix timestamp instantly.
JavaScript uses milliseconds since epoch (not seconds). Multiply Unix timestamps by 1000 to create Date objects: new Date(unixTimestamp * 1000). The Date.now() method returns milliseconds. Always confirm which unit an API expects to avoid off-by-factor-of-1000 errors.
No. Unix timestamps are always in UTC. This is actually an advantage — they represent an absolute point in time regardless of timezone. Converting to local time is a display concern, not a storage concern. Always store and transmit timestamps in UTC.
32-bit systems storing Unix timestamps as signed integers will overflow on January 19, 2038 at 03:14:07 UTC. The value wraps around to negative, causing dates to appear as 1901. Modern 64-bit systems are not affected, but embedded systems and legacy databases may need updates.
The converter shows UTC, local time, ISO 8601 (2024-01-15T10:30:00Z), RFC 2822, and relative time ("5 minutes ago").
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