โฑ๏ธ Epoch Converter
Convert Unix timestamps to readable dates and back free. Handles seconds and milliseconds, timezones, no upload needed.
โฑ๏ธ Epoch Converter
๐ง Loading toolโฆ
About the Epoch Converter Tool
Unix time counts seconds since 1 January 1970 UTC, which makes it an unambiguous way to represent an instant โ no timezone confusion, no date format ambiguity, just an integer. That is why it appears throughout logs, databases, APIs, and file metadata.
The trade-off is that 1754000000 means nothing to a human. Converting in both directions is a routine debugging task, complicated slightly by the fact that some systems use seconds while JavaScript uses milliseconds. This converter handles both, running entirely in your browser.
How to Use Epoch Converter
- Enter a Unix timestamp, or a readable date.
- Specify whether the timestamp is in seconds or milliseconds.
- The conversion appears immediately.
- Copy the result in whichever direction you needed.
When to Use This Tool
- Reading timestamps in application or server logs
- Debugging date handling in an API response
- Converting database timestamp columns to readable dates
- Checking token expiry times encoded as epoch values
- Working with file modification times in scripts
Things Worth Knowing
- Unix time counts from 1 January 1970 00:00:00 UTC, known as the epoch.
- JavaScript uses milliseconds; most other systems use seconds. A factor of 1000 separates them.
- Unix time ignores leap seconds, which keeps the arithmetic simple.
Quick Facts
| Tool name | Epoch Converter |
| Category | Utilities |
| Price | Free โ no account, no trial, no watermark |
| Where it runs | Entirely in your browser (client-side) |
| Files uploaded | None โ your data never leaves your device |
| File size limit | None imposed; limited only by device memory |
| Works offline | Yes, once the page has loaded |
| Platforms | Windows, macOS, Linux, Android, iOS |
Frequently Asked Questions
Why does my timestamp convert to 1970?
Because you supplied a value in seconds to something expecting milliseconds, or the value was zero or near it. A ten-digit number is seconds; a thirteen-digit number is milliseconds.
What is the year 2038 problem?
Systems storing Unix time as a signed 32-bit integer overflow on 19 January 2038, wrapping to a negative value. Modern systems use 64-bit timestamps, which push the limit billions of years out, but legacy embedded systems remain at risk.
Does Unix time account for timezones?
No, and that is its main advantage. It always represents UTC. Timezone handling happens at display time, which removes an entire category of storage bugs.
Why is my timestamp thirteen digits?
It is in milliseconds, which JavaScript uses by default via Date.now(). Divide by 1000 to get the seconds value that most other systems expect.