Timestamp to Date Converter - Unix Timestamp to Human Readable Date

Seconds (10 digits): 1609459200 = January 1, 2021, 00:00:00 UTC

Milliseconds (13 digits): 1609459200000 = January 1, 2021, 00:00:00.000 UTC

Our tool automatically detects which format you're using based on the number of digits.

Common Timestamp Formats Reference

• 10 digits (e.g., 1700000000) — Unix timestamp in seconds
• 13 digits (e.g., 1700000000000) — Unix timestamp in milliseconds (JavaScript)
• 16 digits — Unix timestamp in microseconds
• 19 digits — Unix timestamp in nanoseconds (Go, some databases)
• Negative values — dates before January 1, 1970 UTC

Why Use the Timestamp to Date Converter

• Auto-detects format — automatically identifies seconds, milliseconds, microseconds, and nanoseconds
• Time zone support — shows UTC and local time simultaneously, supports all 400+ IANA time zones
• Batch conversion — convert multiple timestamps at once from a list
• Reverse conversion — convert dates back to Unix timestamps for queries and API calls
• DST-aware — correctly handles daylight saving time transitions
• No setup required — works instantly in the browser with no account or installation

Whether you are debugging logs, analyzing API responses, building time-based features, or investigating security incidents, the Timestamp to Date Converter at TechConverter.me makes working with Unix timestamps fast and effortless.

Convert Timestamps in Code

// JavaScript
// Timestamp to Date
const timestamp = 1609459200;
const date = new Date(timestamp * 1000); // Convert to milliseconds
console.log(date.toUTCString()); // Fri, 01 Jan 2021 00:00:00 GMT

// Date to Timestamp
const now = new Date();
const timestampSeconds = Math.floor(now.getTime() / 1000);
const timestampMilliseconds = now.getTime();
console.log('Seconds:', timestampSeconds);
console.log('Milliseconds:', timestampMilliseconds);

# Python
from datetime import datetime

# Timestamp to Date
timestamp = 1609459200
date = datetime.fromtimestamp(timestamp)
print(date.isoformat())  # 2021-01-01T00:00:00

# Date to Timestamp
now = datetime.now()
timestamp_seconds = int(now.timestamp())
timestamp_milliseconds = int(now.timestamp() * 1000)
print(f'Seconds: {timestamp_seconds}')
print(f'Milliseconds: {timestamp_milliseconds}')

Common Use Cases

• API Development: Convert timestamps from API responses to readable dates
• Database Queries: Work with timestamp-based data in databases
• Log Analysis: Convert server log timestamps to human-readable format
• Data Migration: Transform date formats during data transfers
• Debugging: Verify timestamp calculations in your code

Input:  1700000000 (Unix timestamp, seconds)

Output:
  UTC:   Wednesday, November 14, 2023 22:13:20 UTC
  ISO:   2023-11-14T22:13:20Z
  Local: November 14, 2023 at 5:13:20 PM EST (UTC-5)

Input:  1700000000000 (millisecond timestamp)

Output:
  UTC:   Wednesday, November 14, 2023 22:13:20 UTC
  ISO:   2023-11-14T22:13:20.000Z
  Unix:  1700000000 (seconds)

Log entries:
  [1699999800] ERROR: Database connection timeout
  [1699999860] INFO:  Retry attempt 1
  [1699999920] INFO:  Retry attempt 2
  [1700000000] INFO:  Connection restored

Converted:
  22:10:00 UTC — Error occurred
  22:11:00 UTC — First retry (60 seconds later)
  22:12:00 UTC — Second retry (60 seconds later)
  22:13:20 UTC — Connection restored (80 seconds later)