Timestamp Converter
Current Unix timestamp
Timestamp ↔ Date
Seconds → Y/M/D/H/Min/S
Enter total seconds to break down (month ≈ 30.437 days, year ≈ 365.25 days).
Epoch Converter - Unix Epoch Time Tool
Convert Unix epoch to local/UTC datetime and back. Auto-detects seconds vs milliseconds.
Paste an epoch value or datetime — the tool detects the unit and shows conversions you can copy.
Debugging timezone issues, correlating log entries, and verifying API expiration times all require fast timestamp conversion. A 10-digit number might be seconds while a 13-digit number is milliseconds — confusing them leads to dates in 1970 or year 50000. A dedicated converter eliminates manual calculation errors.
WaiHub's Timestamp tool auto-detects second, millisecond, microsecond, and nanosecond precision. It shows UTC and local time side by side, outputs ISO 8601 format, and supports bidirectional conversion. All calculations run in your browser with no data upload.
- Auto-detect seconds vs milliseconds
- UTC and local timezone display
- ISO 8601 formatted output
- Bidirectional timestamp ↔ date conversion
- Support for μs and ns precision
- Privacy-first browser processing
Features
- Convert Unix timestamp to readable date
- Convert date to Unix timestamp
- Auto-detect s / ms / μs / ns precision
- UTC and local timezone side by side
- ISO 8601 output format
- Current timestamp quick reference
- Copy any output field instantly
- Built-in examples for common dates
- Handles timezone offsets correctly
- Works locally in browser
How To Use
Enter a timestamp or date
Paste a Unix timestamp (e.g. 1704067200) or pick a date/time using the datetime input.
Select unit if needed
The tool auto-detects precision, but you can manually set seconds or milliseconds if auto-detect is ambiguous.
Review all formats
See UTC, local time, and ISO 8601 output simultaneously. Compare timezone differences side by side.
Copy the value you need
Click copy on any output field — timestamp, formatted date, or ISO string — for use in your code or logs.
Examples
Seconds to date
Input
1704067200Output
2024-01-01 00:00:00 UTCMilliseconds to date
Input
1704067200000Output
2024-01-01 00:00:00 UTCFAQ
- Is this timestamp converter free?
- Yes. Completely free with no signup.
- Is my data uploaded?
- No. All conversion happens in your browser.
- Seconds vs milliseconds?
- 10-digit numbers are usually seconds (e.g. 1704067200). 13-digit numbers are milliseconds (e.g. 1704067200000).
- What timezone is used?
- UTC is shown alongside your browser's local timezone for easy comparison.
- Can I use it commercially?
- Yes. Free for personal and commercial use.
- What is Unix timestamp?
- The count of seconds (or milliseconds) since January 1, 1970 00:00:00 UTC, also called Unix epoch time.