Free Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds, shows ISO 8601, UTC, local time, and relative time. No signup required.
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Free Unix Timestamp Converter Features
Bidirectional conversion with multiple formats
Bidirectional
Convert timestamps to dates and dates to timestamps.
Multiple Formats
ISO 8601, UTC, local timezone, and human-readable output.
Relative Time
See how long ago or in the future a timestamp is.
Date to Timestamp
Pick a date and time, get the Unix timestamp instantly.
FAQ
What is a Unix timestamp?
A Unix timestamp is the number of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC (the Unix epoch). It's the standard way to represent time in programming.
Seconds vs milliseconds?
Unix timestamps in seconds are 10 digits (e.g., 1700000000). Milliseconds are 13 digits (e.g., 1700000000000). JavaScript's Date.now() returns milliseconds.
Does this account for timezones?
Unix timestamps are always UTC. The tool shows both UTC and your local timezone conversion.
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