ClearPaste · Developer Tools
Unix Timestamp Converter
Last updated: August 28, 2026
Paste a Unix timestamp (seconds or milliseconds) to see the date — or pick a date to get its epoch value.
How it works
Timestamps under 10 trillion are treated as seconds; larger values as milliseconds — auto-detect that covers virtually every real-world value. Output shows your local timezone and UTC. The date picker converts the other way.
Use cases
Decoding the created_at field from an API response. Building cron schedules and expiry values. Checking when a log line was actually written.
Related tools
JSON Formatter & Validator Base64 Encode / Decode URL Encoder / Decoder
Frequently asked questions
Seconds or milliseconds?
Auto-detected: up to 10 digits is seconds, 13 digits is milliseconds.
What about the 2038 problem?
Not an issue here — JavaScript handles dates far beyond 2038.
Is the conversion done locally?
Yes — your browser's clock and date logic only.