📚 What is Unix Timestamp?

A Unix timestamp (also known as Unix time, POSIX time, or Epoch time) is a system for tracking time as a running count of seconds. It represents the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch), not counting leap seconds.

Key characteristics:

Always in UTC timezone (no timezone information stored)
Typically a 10-digit number for seconds (e.g., 1738277645)
Can be 13-digit for milliseconds (e.g., 1738277645000)
Universally used across different programming languages and databases
Makes date comparison and calculation much easier
Will overflow on January 19, 2038 (32-bit systems) - known as the "Year 2038 problem"

🚀 How to Use Timestamp Converter

Convert Timestamp to Date:

Select "Timestamp to Date" mode
Enter your Unix timestamp (10 or 13 digits)
Check "Timestamp is in milliseconds" if applicable
Choose your desired timezone
Click "Convert Now" to see the human-readable date
View results in multiple formats and copy as needed

Convert Date to Timestamp:

Select "Date to Timestamp" mode
Choose date and time using the date picker
Select output format (seconds or milliseconds)
Click "Convert Now" to get the Unix timestamp
Copy the timestamp for use in your applications

🎯 Common Use Cases

Web Development

Store and compare dates in databases, handle API responses, manage session expiration, and track user activities.

// JavaScript const timestamp = Date.now(); const date = new Date(timestamp); console.log(timestamp); // 1738277645000

Backend Development

Log server events, schedule tasks, implement caching mechanisms, and handle time-based operations.

# Python import time timestamp = int(time.time()) print(timestamp) # 1738277645

Data Analysis

Process log files, analyze time-series data, convert timestamps from different systems, and generate reports.

-- SQL SELECT FROM_UNIXTIME(1738277645); -- Result: 2025-01-30 14:27:25

Mobile Apps

Sync data across devices, handle push notifications, schedule reminders, and manage offline capabilities.

// Swift (iOS) let timestamp = Date().timeIntervalSince1970 print(timestamp) // 1738277645.123

💡 Important Notes

10-digit vs 13-digit: Standard Unix timestamps are 10 digits (seconds). JavaScript and some systems use 13 digits (milliseconds).
Timezone Awareness: Unix timestamps are always in UTC. When converting to dates, specify your timezone for accurate local time.
Year 2038 Problem: 32-bit systems will overflow on January 19, 2038. Modern 64-bit systems don't have this limitation.
Leap Seconds: Unix time doesn't account for leap seconds, which can cause small discrepancies in precise time measurements.
Negative Timestamps: Timestamps before January 1, 1970 are represented as negative numbers.
Maximum Values: The maximum 32-bit timestamp is 2147483647 (January 19, 2038 03:14:07 UTC).

Converter Qu

⏰ Unix Timestamp Converter

Current Unix Timestamp

✅ Conversion Results