Unix Timestamp Converter Online
Convert between Unix timestamps, ISO 8601 dates, and human-readable formats. Supports all timezones.
Converted Values
UTC Offset: -
About Unix Timestamp
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 (UTC), not counting leap seconds. It's widely used in programming, databases, and APIs for representing dates and times in a consistent format.
Unix Timestamp Explained: A Complete Developer Guide
What is a Unix Timestamp?
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. For example, the timestamp 1744934400 represents April 18, 2026, 00:00:00 UTC.
Unix timestamps are preferred in programming because they are simple integers that can be easily compared, sorted, and stored in databases without timezone complications.
Why Use Timestamps in APIs?
Most modern APIs use Unix timestamps for date/time fields because:
- Timezone independent - No ambiguity across different regions
- Easy to sort - Integer comparison is faster than string comparison
- Compact storage - 4-8 bytes vs 20+ characters for ISO strings
- Simple math - Easy to calculate differences, add durations
Seconds vs Milliseconds
JavaScript uses milliseconds: Date.now() returns 1744934400000
Python and most APIs use seconds: int(time.time()) returns 1744934400
⚠️ Common Error: If your timestamp is 13 digits (like 1744934400000), it's in milliseconds. Divide by 1000 to get seconds.
Quick Reference: Common Timestamps
Code Examples
// Current timestamp (milliseconds)
const now = Date.now();
// Convert to date
new Date(now);
// Convert timestamp to string
new Date(1744934400 * 1000).toISOString();
import time
# Current timestamp (seconds)
now = int(time.time())
# Convert to datetime
datetime.fromtimestamp(now)
Related Tools
Related Tools
How to Use This Unix Timestamp Converter: Convert Epoch to Date Online
This Unix timestamp converter makes it easy to convert epoch to human-readable date formats. Whether you're working with database timestamps, API responses, or log files, this free online epoch converter handles both seconds and milliseconds precision with instant conversion to ISO 8601, UTC, and your local timezone.
How to Convert Unix Timestamp to Date
- Enter a Unix timestamp (e.g.,
1717372800for seconds or1717372800000for milliseconds) in the input field. - The converter automatically detects the unit and displays the corresponding UTC time, ISO 8601 formatted date, and your local time.
- To convert a date back to a Unix timestamp, use the date picker or enter a date string—the tool instantly calculates the epoch equivalent.
Unix Timestamp Conversion Examples
// JavaScript: Convert Unix timestamp to date
const timestamp = 1717372800; // seconds
const date = new Date(timestamp * 1000);
console.log(date.toISOString()); // "2024-06-03T00:00:00.000Z"
// Python: Convert epoch to datetime
from datetime import datetime
dt = datetime.fromtimestamp(1717372800)
print(dt.strftime("%Y-%m-%d %H:%M:%S"))This free Unix timestamp converter is invaluable for developers debugging time-related issues in logs, databases, and API integrations. Use this epoch to date converter guide to master timestamp conversion across all your development workflows.