Free Tools /Scheduling
Timestamp & Timezone Converter
Convert a Unix timestamp to a human date, or the reverse, and see it across your local time, UTC, and common business timezones at once.
How this tool works
Two-way conversion
Enter a Unix timestamp to see the human date, or pick a date and time to get the timestamp, in seconds and in milliseconds.
Every timezone at once
The result shows your local time, UTC, and a handful of common business timezones side by side, so you never have to mentally convert again.
Live "now" reference
A live-updating current timestamp is always visible, useful for sanity-checking whether a value you are debugging is in seconds or milliseconds.
Frequently asked questions
Is a Unix timestamp in seconds or milliseconds?
It depends on the system. Unix/POSIX time is traditionally seconds since January 1, 1970 UTC. JavaScript's Date.now() and many web APIs use milliseconds instead. A 10-digit number is almost always seconds; a 13-digit number is almost always milliseconds. This tool auto-detects which one you pasted.
Why do webhook payloads use Unix timestamps instead of readable dates?
Unix timestamps are timezone-independent, unambiguous, and trivially comparable as plain integers, which avoids the parsing and timezone bugs that plague human-readable date strings across different systems and locales.
How do I convert a timestamp inside an n8n Code node?
new Date(timestampInSeconds * 1000) converts a seconds-based Unix timestamp to a JavaScript Date object; skip the *1000 if your value is already in milliseconds. This tool is useful for confirming which one you have before writing that line.
What is the year 2038 problem?
Systems that store Unix time as a signed 32-bit integer will overflow on January 19, 2038. Nearly all modern systems now use 64-bit integers and are unaffected, but it remains a known edge case in older or embedded systems.
Does this tool account for daylight saving time changes?
Yes, it uses your browser's built-in timezone database, which correctly handles daylight saving transitions for the timezones shown.
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