Unix Timestamp Converter
Real-time Unix epoch timestamp tracking and bidirectional high-precision conversion. Seamlessly switch between seconds, milliseconds, and local or UTC time strings.
Timestamp ➔ Date & Time
Date & Time ➔ Timestamp
Documentation & Usage Guide
What is a Unix Timestamp?
A Unix timestamp (Epoch time) is defined as the total number of seconds (or milliseconds) that have elapsed since January 1, 1970, 00:00:00 UTC. Its defining feature is being timezone-independent. The Epoch integer is exactly the same at any given moment, no matter where you are in the world.
10-Digit (Seconds) vs. 13-Digit (Milliseconds)
In daily development and system architecture, there are two common scales:
- Seconds (10 digits): e.g.,
1719878400. Commonly used in Linux, C++, Go, Python, PHP, etc. - Milliseconds (13 digits): e.g.,
1719878400000. Widely used in JavaScript, Java, Android (Kotlin), and high-precision systems.
Quick Operation Guide
- Live Dashboard: The top panel scrolls the local current time in real-time. Click "Pause" to intercept a specific instantaneous time breakpoint for inspection.
- Quick Insert: Click "Insert into Inputs" to immediately sync the current instant time to the conversion areas below.
- Input Filtering: All fields have built-in smart Regex filters to automatically block non-numeric characters when entering timestamps.
- Timezone Awareness: Automatically captures your browser's runtime timezone and outputs standard UTC alongside your local time.
Quick Reference: Get Current Timestamp in Major Languages
| Language | Seconds (10-digit) | Milliseconds (13-digit) |
|---|---|---|
| JavaScript | Math.floor(Date.now() / 1000) | Date.now() |
| Kotlin / Java | System.currentTimeMillis() / 1000 | System.currentTimeMillis() |
| Python | int(time.time()) | int(time.time() * 1000) |
| Go | time.Now().Unix() | time.Now().UnixMilli() |
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