Timestamp to Date Converter

Timestamp to Date:

1. Enter your Unix timestamp (10 or 13 digits)
2. Select your desired timezone from the dropdown
3. Click Convert or let it auto-convert
4. View results in multiple formats (ISO, UTC, local time, etc.)
5. Click copy icons to copy specific formats

Date to Timestamp:

1. Switch to "Date → Timestamp" tab
2. Select date using the date picker
3. Optionally add time (defaults to 00:00:00)
4. Choose timezone for accurate conversion
5. Get both seconds and milliseconds timestamps

JavaScript

// Timestamp to Date
const timestamp = 1609459200;
const date = new Date(timestamp * 1000);
console.log(date.toISOString()); // 2021-01-01T00:00:00.000Z

// Date to Timestamp
const now = new Date();
const unixSeconds = Math.floor(now.getTime() / 1000);
const unixMs = now.getTime();

Python

import datetime

# Timestamp to Date
timestamp = 1609459200
date = datetime.datetime.fromtimestamp(timestamp)
print(date)  # 2021-01-01 00:00:00

# Date to Timestamp
now = datetime.datetime.now()
unix_timestamp = int(now.timestamp())

PHP

<?php
// Timestamp to Date
$timestamp = 1609459200;
$date = date("Y-m-d H:i:s", $timestamp);
echo $date; // 2021-01-01 00:00:00

// Date to Timestamp
$now = time(); // Current Unix timestamp
?>

SQL (MySQL)

-- Timestamp to Date
SELECT FROM_UNIXTIME(1609459200);
-- Result: 2021-01-01 00:00:00

-- Date to Timestamp
SELECT UNIX_TIMESTAMP('2021-01-01 00:00:00');
-- Result: 1609459200

What is a Unix timestamp?

A Unix timestamp (also called Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC (the Unix Epoch). For example, 1609459200 represents January 1, 2021 00:00:00 UTC. It's a standard way to represent time in computer systems because it's timezone-independent and easy to calculate with.

What's the difference between 10-digit and 13-digit timestamps?

A 10-digit timestamp represents seconds since the Unix Epoch (e.g., 1609459200 = Jan 1, 2021). A 13-digit timestamp represents milliseconds since the Unix Epoch (e.g., 1609459200000 = same date). JavaScript uses milliseconds by default, while most Unix systems use seconds. Our tool automatically detects which format you're using.

Can Unix timestamps be negative?

Yes! Negative timestamps represent dates before January 1, 1970. For example, -315619200 represents July 20, 1969 (the Apollo 11 moon landing). This is useful for historical data or any dates before the Unix Epoch.

Do Unix timestamps account for timezones?

No, Unix timestamps are always in UTC (Coordinated Universal Time) and don't include timezone information. They represent an absolute point in time. When displaying a timestamp as a date, you must specify which timezone to use for the conversion. Our tool lets you choose from 12+ timezones for accurate local time display.

How do I convert a date to a timestamp?

Use the 'Date → Timestamp' tab in our tool. Enter the date (and optionally time), select your timezone, and click Convert. The tool will generate both seconds and milliseconds timestamps. You can also click 'Now' to use the current date and time.

Can I convert multiple timestamps at once?

Yes! Use the 'Batch Conversion' section (click to expand). Paste multiple timestamps (one per line) and click 'Convert Batch'. The tool will process all timestamps and show results with success/error indicators. You can copy individual results or download all conversions.