Unix Timestamp Converter
Quickly convert Unix timestamps (epoch time) to human-readable dates and vice versa. This tool supports both seconds and milliseconds, displays results in UTC and your local time zone, and provides ISO 8601 formatted output.
Using your local timezone.
How It Works
What is a Unix Timestamp?
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It's a standard way to represent time in programming.
Seconds vs Milliseconds
Unix timestamps in seconds are typically 10 digits (e.g., 1710000000). In milliseconds, they're 13 digits (e.g., 1710000000000). This tool auto-detects which format you're using.
Common Usage
Timestamps are commonly used in APIs, databases, log files, and backend systems. Converting them to human-readable dates is one of the most frequent developer tasks.
Frequently Asked Questions
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is widely used in programming, databases, and APIs.
A Unix timestamp in seconds is typically 10 digits long (e.g., 1710000000). In milliseconds, it is 13 digits long (e.g., 1710000000000). JavaScript uses milliseconds by default.
Both! This converter shows the result in your local timezone and in UTC, so you can easily compare them.
Yes. Use the "Date to Timestamp" section to enter a specific date and time, and get the corresponding Unix timestamp in seconds and milliseconds.
If your timestamp has 13 digits, it's likely in milliseconds. This converter auto-detects this and handles both formats correctly.
Yes, this tool is completely free with no sign-up required.
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