Unix timestamp converter
Convert Unix seconds to UTC dates or an explicitly offset date to Unix seconds.
Unix timestamp converter: inputs, results and limitations
Convert Unix seconds to UTC dates or an explicitly offset date to Unix seconds.
How to use Unix timestamp converter
- Paste your text or use the example to inspect the operation.
- Run the tool once the input is ready.
- Inspect the preview or result, then download a new file.
An illustrative use case
1700000000 interpreted as a Unix time in seconds.
Sample input
1700000000
What to inspect in the output
Distinguish seconds from milliseconds before converting. JavaScript often exposes milliseconds, which are a thousand times larger than Unix seconds for the same instant.
Where this tool stops
Review the output before using it. Your original input is not changed.
Troubleshooting Unix timestamp converter
Check source syntax and distinguish literal characters from their escaped representation. Run the example first, then compare with your failing input to isolate the invalid part.
Questions about Unix timestamp converter
Why is my date far in the future?
A millisecond value may have been entered where seconds are expected. Verify the unit at the source of the timestamp.
What input does Unix timestamp converter need?
Use the sample text shown below, then replace it with your own input. Review the result for the destination where it will be used.
Which options does Unix timestamp converter provide?
There are no extra settings in this version. Select or paste the appropriate input and review the produced result.
Your original input is preserved. Review the new output before using it in a published page, customer delivery or production workflow.
JavaScript enables the interactive workspace.