Unix Timestamp Converter
Convert epoch to date or date to epoch — Unix timestamps (seconds or milliseconds) to human-readable dates with timezone support. Runs entirely in your browser.
How to use:
- Enter a Unix timestamp (seconds or milliseconds) to convert to date
- Pick a date/time to convert to Unix timestamp
- Select a timezone to display results in (defaults to your browser local time)
- Copy any result with the copy button
Current time
Epoch → Date
Date → Epoch
The datetime-local input is interpreted in your browser's local timezone. The epoch values are timezone-independent (absolute).
About this tool
Unix Timestamp Converter is a free online tool for converting between Unix epoch time and human-readable dates. It accepts seconds or milliseconds, displays results in any timezone, and shows the live current epoch — useful for debugging logs, API responses, and cron schedules.
- Units
- Unix seconds and milliseconds, auto-detected
- Timezones
- Display in any IANA timezone; defaults to your device's local time
- Output
- Human-readable local date and ISO 8601 string
- Signup
- Not required
- Processing
- Entirely in your browser — timestamps are converted locally, never sent anywhere
- Difference
- Auto-detects seconds vs milliseconds with any IANA timezone and a live epoch clock
- Price
- Free, no usage limits
Limitations
- Conversions rely on your device's clock and timezone database
- Ambiguous small numbers are treated as seconds; sub-second precision requires millisecond input
Timestamp Converter — FAQ
Is the Unix Timestamp Converter free?
Yes. The Unix Timestamp Converter is completely free with no signup and no usage limits, like all SqlInt mini tools.
Seconds or milliseconds?
Both — the converter auto-detects the unit (13+ digit values are treated as milliseconds) and shows the live current epoch for reference.
Which timezones are supported?
Any IANA timezone, defaulting to your device's local time, with ISO 8601 output.
Does my data leave my browser?
No. Every mini tool processes data locally in your browser — pasted text and uploaded files never leave your device.