What is a Unix timestamp
Seconds (sometimes milliseconds) since 1970-01-01 UTC.
- 10 digits → usually seconds (
1717200000) - 13 digits → usually ms (
1717200000000)
Common in logs, Redis, some DB columns and JWT exp/iat.
What the tool does
The Unix Timestamp Converter offers:
- Live clock for sec/ms
- Number → date (local, UTC, ISO, relative)
- Datetime picker → epoch
- Batch one value per line
Pair with the JWT decoder for token expiry checks.
Timezones
Local time uses your browser zone; use the UTC row for cross-team alignment.
Privacy
All conversion is local.