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Convert Unix timestamps to readable dates or dates back to Unix timestamps. Supports seconds and milliseconds — shows the live current timestamp updated every second.
0
Updates every second · Seconds since Jan 1, 1970 UTC
Interpreted in your local timezone
The Unix epoch timestamp represents the total number of elapsed seconds since Thursday, 1 January 1970 00:00:00 UTC, not counting leap seconds. This integer-based time representation is universally employed in operating systems, relational databases, cache TTLs, and distributed cloud microservices.
| Precision Unit | Digits (Current Era) | Typical Value Example | Common Platform / Environment |
|---|---|---|---|
| Seconds | 10 digits | 1789929600 | Unix shell, Python time.time(), MySQL UNIX_TIMESTAMP() |
| Milliseconds | 13 digits | 1789929600000 | JavaScript Date.now(), Java System.currentTimeMillis() |
| Microseconds | 16 digits | 1789929600000000 | High-frequency trading, Linux kernel event tracing |
| Nanoseconds | 19 digits | 1789929600000000000 | Go time.Now().UnixNano(), Rust SystemTime |
On 19 January 2038 at 03:14:07 UTC, 32-bit signed integers will reach their maximum positive value ($2^{31} - 1 = 2,147,483,647$). Upon the subsequent second, the integer overflows to $-2,147,483,648$, wrapping the recorded date back to 13 December 1901. Modern operating systems and database architectures have mitigated this by transitioning to 64-bit timestamps, which remain safe for approximately 292 billion years.
JavaScript
// Get current timestamp in seconds and milliseconds
const epochSeconds = Math.floor(Date.now() / 1000);
const epochMilliseconds = Date.now();
// Convert timestamp to human-readable ISO string
const dateFromSeconds = new Date(epochSeconds * 1000).toISOString();
console.log(dateFromSeconds);
Python
import time
from datetime import datetime, timezone
# Current timestamp in seconds
ts = int(time.time())
# Format to UTC ISO date
readable = datetime.fromtimestamp(ts, tz=timezone.utc).isoformat()
print(f"Timestamp: {ts} -> {readable}")
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