Unix Time Converter
Epoch math + timezones
Unix Time Converter is on the roadmap. In the meantime, explore the other developer tools.
What is Unix Time Converter?
Convert between Unix epoch timestamps (seconds, milliseconds, microseconds, or nanoseconds) and ISO-8601 / RFC-2822 / human-readable dates across any IANA time zone. Tells you the difference from "now" in human terms ("3 days ago", "in 2 hours"). Useful for log analysis where timestamps are in seconds, debugging API responses where they're in milliseconds, or working with high-precision systems that use nanoseconds.
How do I use Unix Time Converter?
- Paste a Unix timestamp or pick "Now" for the current moment.
- Pick the unit (seconds, ms, μs, ns) — usually auto-detected.
- Pick the target time zone.
- Read the converted ISO date and the human-readable delta.
When should I use Unix Time Converter?
Unix Time Converter is the precision-aware sibling of Timestamp Converter — pick whichever you reach for first. For computing the gap between two specific dates, use Date Difference. For cron schedules, use Cron Generator.
How is this different from Timestamp Converter?
Same conversion direction, more precision options. Unix Time Converter handles seconds / milliseconds / microseconds / nanoseconds explicitly — useful for log formats and high-precision databases. Timestamp Converter is the friendly default.
Why microseconds and nanoseconds?
Some systems (Postgres TIMESTAMP, Go time.Time, Cassandra) record sub-millisecond precision. Truncating to milliseconds in those contexts loses ordering for closely-spaced events.
Does it handle leap seconds?
Unix time itself ignores leap seconds (the Posix definition). The tool follows the same convention; for astronomical-precision work, TAI is a better reference.
Is my file uploaded anywhere?
No. Everything runs in your browser. Your files never leave your device, and there is no server component for this tool.