Unix Timestamp Converter Online (Epoch Time to Date Free)
Convert Unix timestamps in seconds to readable dates, and dates back to Unix seconds, in your browser. Current time updates every second. Client-side, free, no account.
Convert Timestamp to Date
Convert Unix timestamp (in seconds) to human-readable date format.
How to Use
- Timestamp โ Date: Enter Unix timestamp and select desired date format, then convert.
- Date โ Timestamp: Enter date string and convert. You can use ISO 8601 format or common date format.
- You can copy the converted result to clipboard.
- Use "Use Current Time" button to quickly enter current time.
Key Features
- Convert Unix timestamp (in seconds) โ date/time
- Support various date formats (ISO 8601, Korean, US format, etc.)
- Display real-time current timestamp
- Clipboard copy functionality
- Input validation
๐ก Note: All processing is done directly in your browser, and data is not sent to the server, making it completely safe. Timestamps are based on seconds (Unix timestamp).
Why Use an Online Unix Timestamp Converter?
Unix time counts whole seconds since 00:00:00 UTC on 1 January 1970 (the epoch). Logs and APIs often store that integer. This page turns a seconds timestamp into a date string, or a date string into seconds, using the browser's JavaScript Date. It does not parse log files, query a database, or apply leap seconds (same as typical Unix/POSIX time).
Choose Timestamp โ Date or Date โ Timestamp, enter a value, then click Convert. The banner shows the current Unix time in seconds and refreshes every second. Conversion is not live as you type. Work stays in the browser; nothing is sent to a Toolo server.
Key Features & Benefits
Built for local seconds-based Unix time in the browser:
Client-Side Conversion
Parsing uses JavaScript Date in your browser. Values are not uploaded or stored on a Toolo server.
Current Time in Seconds
The top card shows Math.floor(Date.now() / 1000) and updates once per second. It does not show milliseconds or a live localized clock next to that number.
Two Directions, On Click
Timestamp โ Date treats the number as seconds (multiplied by 1000 for Date). Output formats: ISO 8601 UTC (toISOString), Korean (ko-KR, local), US (en-US, local), or YYYY-MM-DD HH:mm:ss (local). Date โ Timestamp uses new Date(string) and returns whole seconds. ISO 8601 and other strings the engine accepts will work; there is no separate timezone picker.
Free, No Account
Use it without a login. Validation allows 0 through 2147483647 seconds (the 32-bit Unix range through January 2038). 13-digit millisecond values are not converted as milliseconds.
Frequently Asked Questions (FAQ)
What is a Unix Epoch Timestamp?
It is the number of seconds since 00:00:00 UTC on 1 January 1970. This tool uses that seconds count. Leap seconds are not added or subtracted, which matches usual Unix/POSIX and JavaScript Date behavior.
Does Toolo support both seconds and milliseconds Unix timestamps?
The converter treats the input as seconds. The live current value is also seconds. A 13-digit millisecond timestamp is not auto-detected: it is still multiplied by 1000, so the date will be wrong. Divide milliseconds by 1000 first, or use a seconds value.
Is my converted timestamp or log data saved on external servers?
No. Conversion runs in your browser with JavaScript. Timestamps are not stored or transmitted to a Toolo server.