Unix Epoch Converter
Convert Unix epoch timestamps to readable dates and back free online. Supports seconds and milliseconds, with the current live timestamp shown for reference.
Current Unix Timestamp
0
Browser only.
How to Use This Tool
1
Convert a timestamp to a datePaste any Unix timestamp to see the readable date
2
Or convert a date to a timestampPick a date/time to get its Unix timestamp
3
Reference the live counterSee the current timestamp updating in real time
Unix Epoch Converter is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.
One Number Representing Any Moment, Universally
A Unix timestamp reduces any point in time to a single number: seconds elapsed since January 1, 1970 UTC -- exactly why databases, APIs, and log files lean on it internally, even though it's not human-readable on its own.
Seconds Versus Milliseconds -- A Common Source of Confusion
A timestamp that looks unexpectedly large by exactly a factor of 1000 is almost always this seconds-vs-milliseconds distinction at play.
Frequently Asked Questions
The number of seconds (or milliseconds, depending on the system) elapsed since January 1, 1970, 00:00:00 UTC -- a single number representing any date and time, which is why so many systems and APIs use it internally instead of formatted date strings.
Unix systems and most server-side languages traditionally use seconds-based timestamps. JavaScript's Date object internally uses milliseconds, which is why timestamps from browser console output often look like a much larger number -- three extra digits for millisecond precision.
A single global reference time avoids the complexity of timezone offsets and daylight saving changes creating ambiguity about which moment a timestamp represents -- converting to local time is treated as a separate display step.
Debugging API responses, log files, or database records that store raw timestamp values often requires quickly checking what date and time a number actually represents.
The 'Year 2038 problem' affects systems using 32-bit signed integers, which will overflow in January 2038. Modern 64-bit systems don't have this limitation.
Comments
No comments yet
Be the first to share your experience with this tool!