Private & local
All conversion happens in your browser. Nothing is uploaded, logged, or stored — your data never leaves your device.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Free, fast, private — all processing happens in your browser.
Timestamp Converter
Convert between Unix timestamps and human-readable dates. All local, instant.
Unix seconds
ms
μs
ns
Results will appear here as you type...
GMT
Your Time Zone
ISO 8601
RFC 2822
Relative
Date & Time Fields
Year
Month
Day
Hour
Minute
Second
Day of Week
How to use the Timestamp Converter
Three simple steps to convert between Unix timestamps and dates.
- Type or paste a Unix timestamp (e.g. 1783214657) or a date string (e.g. 2026-07-05T12:00:00Z) into the input area. The tool automatically detects the input type — no need to choose a mode.
- Results update instantly as you type. You'll see the converted value in GMT, your local timezone, ISO 8601, and RFC 2822 formats — all at once.
- Click Copy next to any result to copy it to your clipboard. The live Unix timestamp at the top updates every second and can also be copied with one click.
Features
A local timestamp converter built for developers and everyday use.
Auto-detect & instant
No need to choose a mode. The tool automatically detects whether your input is a timestamp or a date and converts it instantly as you type.
Multiple output formats
Get results in GMT, your local timezone, ISO 8601, and RFC 2822 — all at once. Each format has its own copy button for quick access.
Human-readable time reference
Common time units and their equivalent in seconds.
| Human-readable time | Seconds |
|---|---|
| 1 minute | 60 seconds |
| 1 hour | 3,600 seconds |
| 1 day | 86,400 seconds |
| 1 week | 604,800 seconds |
| 1 month (30.44 days) | 2,629,743 seconds |
| 1 year (365.24 days) | 31,556,926 seconds |
Frequently asked questions
Common questions about Unix timestamps and how our tool works.
What is a Unix timestamp?
A Unix timestamp (also called Unix time, POSIX time, or epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — not counting leap seconds. It's widely used in programming for storing and comparing dates because it's a simple integer that's timezone-independent.
What is the difference between seconds and milliseconds?
Unix timestamps in seconds are 10 digits long (e.g. 1783214657). Timestamps in milliseconds are 13 digits long (e.g. 1783214657000). Our tool automatically detects which one you've entered and converts accordingly. JavaScript typically uses milliseconds, while most APIs and databases use seconds.
What date formats can I paste?
The tool accepts a wide range of date formats including ISO 8601 (2026-07-05T12:00:00Z), RFC 2822 (Sun, 05 Jul 2026 12:00:00 GMT), and common formats like MM/DD/YYYY. It also handles natural language dates like "July 5, 2026". Just paste and the tool figures it out.
Does this work offline?
Yes. All conversion logic runs entirely in your browser using the standard JavaScript Date API. Once the page loads, you can use the tool without an internet connection. The live timestamp counter uses your device's system clock.