Unix Epoch Timestamp Converter
Convert between Unix timestamps and human-readable dates
Current Unix Timestamp
1772490547
Updates every second
Timestamp to Date
Date to Timestamp
How it works
Unix timestamps represent the number of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC, known as the Unix epoch. This tool uses JavaScript's built-in Date object for all conversions. Timestamps larger than 10¹¹ are automatically detected as milliseconds. The current timestamp updates every second via setInterval. All processing happens entirely in your browser.
Frequently Asked Questions
What is Unix epoch time?
Unix epoch time (or Unix timestamp) counts the number of seconds since January 1, 1970 00:00:00 UTC. It is the standard way computers represent time internally. For example, 1700000000 represents November 14, 2023.
Why do some timestamps have 13 digits?
A 10-digit timestamp is in seconds (Unix standard). A 13-digit timestamp is in milliseconds, commonly used in JavaScript (Date.now()) and many APIs. This tool handles both formats automatically.
What is the Year 2038 problem?
Systems using 32-bit signed integers to store Unix timestamps will overflow on January 19, 2038 at 03:14:07 UTC. The maximum value (2,147,483,647) will wrap to a negative number. Most modern systems have moved to 64-bit timestamps which last billions of years.
Does this tool account for timezones?
Unix timestamps are always in UTC. When converting to a human-readable date, the tool shows both UTC and your local timezone. When converting from a date to a timestamp, the result is always in UTC regardless of your timezone.