Developer tools / Date and time
Timestamp Converter
Translate a date into ISO 8601, UTC, local time, Unix seconds, and Unix milliseconds without guessing the timezone.
Runs entirely on your deviceNo uploads, accounts, cookies, or personal tracking.
One moment, every format
No date converted yet
Your local, UTC, ISO, and Unix values will appear here.
Local time
UTC
ISO 8601
Unix seconds
Unix milliseconds
1. Add your data
Enter a local date or paste a Unix timestamp.
2. Choose the result
Review the same moment in standard formats.
3. Save it locally
Copy the exact value your system needs.
About this tool
Use Timestamp Converter without an upload
Translate a date into ISO 8601, UTC, local time, Unix seconds, and Unix milliseconds without guessing the timezone.
The operation runs in the current browser tab. Tool input is not included in aggregate analytics, and the standalone download makes no analytics requests.