Free Unix Timestamp Converter — Epoch Time Made Easy

Every developer Googles "unix timestamp to date" at least once a week. Our free timestamp converter handles it instantly — convert timestamps to dates, dates to timestamps, with a live epoch clock ticking in real time.

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." It's the universal way computers represent time.

1743552000 → April 2, 2025 00:00:00 UTC
1775088000 → April 2, 2026 00:00:00 UTC

Timestamps are everywhere: APIs, databases, log files, JWT tokens, cookies, and file metadata all use them.

Seconds vs Milliseconds — The Classic Trap

Some systems use seconds (10 digits), others use milliseconds (13 digits). Mixing them up gives you dates in 1970 or the year 55,000. Our converter auto-detects which format you're using — no more guessing.

Seconds:      1743552000     → April 2, 2025
Milliseconds: 1743552000000  → April 2, 2025
Seconds:      1743552000000  → Year 57,228 (wrong!)

Get Current Unix Timestamp

JavaScript

Math.floor(Date.now() / 1000);   // seconds
Date.now();                       // milliseconds

Python

import time
int(time.time())      # seconds
int(time.time()*1000) # milliseconds

Bash

date +%s              # seconds

SQL (PostgreSQL)

SELECT EXTRACT(EPOCH FROM NOW())::INTEGER;

Or Just Open Our Tool

Our timestamp converter shows a live ticking clock with the current Unix timestamp — click to copy.

The Year 2038 Problem

Unix timestamps are traditionally stored as 32-bit signed integers. The maximum value — 2,147,483,647 — corresponds to January 19, 2038, 03:14:07 UTC. After that, 32-bit systems will overflow and interpret the timestamp as a negative number, jumping back to December 13, 1901.

The fix: use 64-bit timestamps. Most modern systems already do. But legacy code and embedded systems may still be affected. Our converter highlights the Y2K38 timestamp so you can test for it.

Common Timestamp Conversions

• Timestamp → UTC date — the most common conversion
• Timestamp → local time — adjusted for your timezone
• Timestamp → ISO 8601 — 2026-04-02T00:00:00.000Z
• Timestamp → RFC 2822 — Thu, 02 Apr 2026 00:00:00 +0000
• Date → timestamp — pick a date, get the epoch value
• Relative time — "3 hours ago", "in 2 days"

Our converter gives you all of these simultaneously.

Why This Tool?

• Auto-detects seconds vs milliseconds — no more wrong conversions
• Live ticking clock — shows current epoch in real time
• Bidirectional — timestamp → date AND date → timestamp
• Multiple formats — UTC, local, ISO 8601, RFC 2822, relative time
• Quick timestamps — one-click for "now", "1h ago", "24h ago", "7d ago"
• 100% client-side — nothing sent to any server
• Click to copy — tap any result to copy it

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