About this Unix timestamp converter
A Unix timestamp (also known as epoch time) is the number of seconds since 1 January 1970, midnight UTC. It is how most computers, databases and programming languages store a moment in time as a single number. That is efficient for machines but unreadable for people — which is where this converter helps. Paste a timestamp and it shows the matching date in both UTC and your own local time zone. Type a date and it gives you the timestamp back, in seconds and milliseconds. It even detects whether the number you pasted is in seconds or milliseconds, a common source of bugs for developers. The live counter at the top shows the current timestamp ticking up second by second. Everything runs in your browser.
Frequently asked questions
- What is a Unix timestamp?
- The number of seconds since 1 January 1970 (UTC) — how computers store dates as one number.
- Seconds or milliseconds?
- Both are used. The tool detects which you pasted and converts it correctly.
- Which time zone?
- It shows your local time and UTC. Timestamps are always counted from UTC.