Epoch Converter
Work with epoch values in seconds, milliseconds, microseconds and ticks.
Nothing converted yet
Paste one epoch value or a whole column of them. The unit is detected from the magnitude and always reported, so you can override a wrong guess.
Runs entirely in your browser. Your data isn't uploaded — this page makes no network request with anything you type, which you can verify in your browser's network tab. How this works.
What is the Epoch Converter?
Epoch values arrive in inconsistent units. One service emits seconds, another milliseconds, a Java system produces milliseconds with sub-second precision, and a Go or database export might use microseconds or nanoseconds. Comparing them means normalising first.
This converter is built for that: it detects the unit from the magnitude, converts between all four, handles a whole column of timestamps pasted at once, and does simple date arithmetic so you can answer "what was the epoch 30 days before this?" without a calculator.
How to use it
- Paste one epoch value, or a whole column of them, into the input.
- Confirm or override the detected unit.
- Read the converted table — every unit and every common date format.
- Use the arithmetic panel to add or subtract an interval, or Download the batch results as CSV.
Example
One value expressed in every epoch unit.
1788825600123 (milliseconds detected)
seconds 1788825600 milliseconds 1788825600123 microseconds 1788825600123000 nanoseconds 1788825600123000000
Features
- Seconds, milliseconds, microseconds and nanoseconds
- Batch conversion of many timestamps at once, with CSV export
- Date arithmetic: add or subtract seconds, minutes, hours, days and weeks
- Start and end of day, week, month and year for any epoch
- Live current epoch in every unit