Convert seconds or milliseconds since the Unix Epoch to human-readable dates, local time, and UTC instantly.
Auto-detects seconds, milliseconds, or standard date strings (e.g. "2026-06-24T00:00:00Z").
Math.floor(Date.now() / 1000)import time; int(time.time())time()System.currentTimeMillis() / 1000time.Now().Unix()DateTimeOffset.UtcNow.ToUnixTimeSeconds()Stop writing basic prompts. Unlock the exact 360-degree analysis frameworks used by top AI engineers.
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Epoch time (also known as Unix time or POSIX time) is a universal system for describing an exact point in time. It is defined as the total number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC (the Unix epoch).
Because it represents time as a single continuous integer, it is incredibly easy for computer systems to store, sort, and calculate time differences without worrying about time zones, daylight saving time, or leap years.
When building APIs, databases, or logging systems, dealing with string-based dates like "2026-06-24T14:30:00Z" can lead to parsing errors, serialization bugs, and severe time zone confusion.
By storing an exact Unix timestamp like 1782293400, the data remains universal. A frontend application in Tokyo and a backend server in New York can read the exact same integer and reliably convert it to their local user's timezone without conflicts.
If you need to retrieve or convert the current epoch time programmatically, here is how you do it in the most popular programming languages:
// Get current epoch in milliseconds const epochMs = Date.now(); // Get current epoch in seconds const epochSec = Math.floor(Date.now() / 1000);
import time # Get current epoch in seconds epoch_sec = int(time.time())
// Get current epoch in seconds $epoch = time();
import "time" // Get current epoch in seconds epochSec := time.Now().Unix()
// Get current epoch in seconds long epochSec = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
Similar to the infamous Y2K bug, the Year 2038 problem affects computer systems that store system time as a signed 32-bit integer.
At exactly 03:14:07 UTC on January 19, 2038, the 32-bit integer will reach its maximum value (2147483647). One second later, the integer will overflow into a negative number, causing affected systems to interpret the date as December 13, 1901. Most modern databases and 64-bit operating systems have already solved this by moving to 64-bit integers, which won't overflow for another 292 billion years.
Our Epoch Converter runs 100% locally in your browser. When you paste a timestamp or date string, the conversion is handled purely by your browser's native JavaScript Date API. Your data is never transmitted over the internet or logged by our servers.
A Unix epoch timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970, at 00:00:00 UTC, excluding leap seconds. It is the standard way computer systems track time.
The Year 2038 problem occurs because 32-bit signed integers can only store time up to January 19, 2038. After this date, systems using 32-bit integers will overflow and read the date as December 1901. Modern systems fix this by using 64-bit integers.
Yes, our epoch converter automatically detects whether you pasted a 10-digit timestamp (seconds) or a 13-digit timestamp (milliseconds) and converts it accordingly.
No. Our Epoch Converter runs entirely in your browser using JavaScript's native Date API. Your timestamps are never transmitted over the network.
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