# Convert Unix Timestamp to Date

> Convert Unix timestamps to human-readable dates online. Free epoch to date converter with a worked example — seconds since 1970 to ISO 8601 UTC.

A Unix timestamp counts the seconds since 1 January 1970 UTC, which is unreadable at a glance. This converter turns those epoch seconds into an ISO 8601 date-time in UTC so you can tell exactly when something happened.

## Example: Unix → Date

Input:
```
0
1609459200
1700000000
```

Output:
```
1970-01-01T00:00:00.000Z
2021-01-01T00:00:00.000Z
2023-11-14T22:13:20.000Z
```

## How to convert Unix to Date

1. Take the Unix timestamp (seconds since the 1970 epoch).
2. Multiply by 1000 to get milliseconds for JavaScript's Date.
3. Format as ISO 8601 — 1700000000 becomes 2023-11-14T22:13:20.000Z.

## FAQ

### Is the timestamp in seconds or milliseconds?

This converter expects seconds, the classic Unix convention. If your value has 13 digits it is milliseconds — divide by 1000 first.

### What time zone is the result in?

The output is UTC (the trailing Z). Convert to a local zone afterward if you need wall-clock time for a specific region.

## Related converters

- [Date → Unix](https://www.devkult.com/convert/date-to-unix-timestamp.md)

Open the interactive converter: https://www.devkult.com/convert/unix-timestamp-to-date