Seconds to ISO
Input: 1719859200
Output: 2024-07-01T16:00:00.000Z
Time
Unix Timestamp Converter
Convert Unix timestamps to local/UTC time and dates back to timestamps.
Runs locallyNo uploadNo external API
Input
Output
Enter a timestamp or load the current time.
Enter a timestamp or load the current time.
Runs in your browser. Input is not uploaded or sent to an external API.
Related tools
How to use Timestamp
Convert epoch seconds, milliseconds, local date-time input, UTC time, and ISO output while debugging API logs or token claims.
- Paste or type your input.
- Load the sample if you want a quick check.
- Run the action, review the result, then copy only what you need.
Examples
Milliseconds detection
Input: 1719859200000
Output: Seconds: 1719859200
Common use cases
Read token expiry
JWT Decoder displays exp, iat, and nbf claims using the same local time conventions.
Decode sortable IDs
ULID Generator can decode the creation timestamp from a valid ULID.
Limitations
Timezone display
Local time uses your browser environment. UTC and ISO are included for stable sharing.
FAQ
How do I know seconds from milliseconds?
Auto mode treats very large values as milliseconds. You can force the unit if a system uses unusual ranges.
Is the conversion sent to a server?
No. Date parsing and formatting are browser-local.