1. Enter a value
Type a number in the input field. You can use a period or comma as the decimal separator.
Convert Unix timestamp
Convert Unix timestamps to readable dates and vice versa. Enter a timestamp or date and the result appears instantly.
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When do you need to convert Unix timestamps?
Unix timestamp (epoch time) is the number of seconds since January 1, 1970, 00:00:00 UTC. It is the standard time representation in programming, databases, APIs, and log files.
Example: 1700000000 = November 14, 2023, 22:13:20 UTC. The current timestamp increases by 1 every second.
Converting timestamps is essential for developers working with APIs, debugging log files, analyzing database records, and understanding time-based data.
All calculations run locally in your browser — nothing is sent to any server.
How to use the converter?
2. Read the result
The conversion result appears instantly in the field next to it – no clicking required.3. Copy or reverse
Click Copy result or use the Reverse button to convert in the opposite direction.
When is this converter useful?
Databases
Fields like created_at and updated_at store timestamps.API & JWT
JWT tokens: the exp (expiration) field is a timestamp.Server Logs
Read timestamps from system and application logs.Debugging
Quickly check when an error occurred based on its timestamp.
What makes this converter different?
Complete privacy
All calculations run locally in your browser. No data is sent to any server.Real-time results
The result updates instantly as you type – no need to click any button.Bidirectional conversion
The Reverse button lets you convert in both directions with one click.Reference table
A ready-made table with commonly converted values and contextual descriptions.
How do Unix timestamps work?
Unix time counts seconds from the epoch: January 1, 1970, 00:00:00 UTC. This date was chosen as a convenient reference point for the original Unix operating system.
Timestamps can be in seconds (10 digits: 1700000000) or milliseconds (13 digits: 1700000000000). JavaScript Date uses milliseconds.
The Year 2038 problem: 32-bit signed integers overflow on January 19, 2038. Most modern systems use 64-bit timestamps to avoid this.
Practical tips
- JavaScript: Date.now() returns milliseconds. Math.floor(Date.now()/1000) for seconds.
- Python: import time; time.time() returns seconds as float.
- PHP: time() returns seconds as integer.
- MySQL: UNIX_TIMESTAMP() and FROM_UNIXTIME() for conversion.
Timestamp formats
| Feature | Unix (seconds) | Unix (milliseconds) |
|---|---|---|
| Digits | 10 digits | 13 digits |
| Example | 1700000000 | 1700000000000 |
| Used by | PHP, Python, MySQL | JavaScript, Java |
| Precision | 1 second | 1 millisecond |
| Max (32-bit) | Jan 19, 2038 | N/A (uses 64-bit) |
Unix (seconds)
- Digits
10 digits - Example
1700000000 - Used by
PHP, Python, MySQL - Precision
1 second - Max (32-bit)
Jan 19, 2038
Unix (milliseconds)
- Digits
13 digits - Example
1700000000000 - Used by
JavaScript, Java - Precision
1 millisecond - Max (32-bit)
N/A (uses 64-bit)
Explore other unit converters
Frequently asked questions
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