Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Auto-converts as you type.
About Unix Timestamp Converter
Unix timestamps (the number of seconds since Jan 1, 1970) are used everywhere in programming, but they are unreadable to humans. Our free online Timestamp Converter instantly translates these numbers into readable dates and times, and vice versa.
How It Works
The tool uses JavaScript's native Date object to perform the conversions. It takes a Unix timestamp (in seconds or milliseconds) and formats it into a human-readable string based on your local timezone or UTC.
Common Use Cases
- Debugging database records that store creation dates as integers
- Converting a specific date and time into a timestamp for an API request
- Checking the exact expiration time of a JWT (JSON Web Token)
- Synchronizing events across different timezones using a universal format
Frequently Asked Questions
Yes, the tool automatically detects whether your timestamp is in seconds (10 digits) or milliseconds (13 digits) and converts it accurately.
By default, it displays the converted time in your local browser's timezone, but it also provides the equivalent time in UTC (Coordinated Universal Time).
Unix epoch time counts the number of seconds since January 1, 1970, 00:00:00 UTC. This date is known as the 'epoch.' For example, timestamp 0 = Jan 1, 1970.
Unix timestamps in seconds are 10 digits (e.g., 1700000000). JavaScript and Java use milliseconds (13 digits, e.g., 1700000000000). Our tool detects and converts both.
32-bit systems store Unix time as a signed integer, which overflows on January 19, 2038. Modern 64-bit systems use 64-bit integers, extending the range to billions of years.
The tool displays the current timestamp in real time. In code: JavaScript uses Date.now()/1000, Python uses time.time(), and PHP uses time().