Unix Timestamp Converter — Epoch to Date & Date to Epoch Free

What Is a Unix Timestamp?

A Unix timestamp is the number of seconds since January 1, 1970 (the "epoch"). Right now it is something like 1775000000. Every database, API, and logging system uses timestamps internally because they are timezone-independent, sortable, and compact. But humans cannot read "1775000000" — we need "March 31, 2026 at 3:15 PM."

How to Convert Timestamps

1. Open the Timestamp Converter
2. Paste a Unix timestamp (e.g., 1775000000) → see the human-readable date
3. Or enter a date → get the Unix timestamp
4. Toggle between seconds and milliseconds (JavaScript uses milliseconds)

The converter handles both directions instantly. Bookmark it — you will use it weekly if you work with APIs or databases.

Seconds vs Milliseconds

• Unix timestamp (seconds) — 1775000000 — used by PHP, Python, MySQL, PostgreSQL, most backend systems
• JavaScript timestamp (milliseconds) — 1775000000000 — used by Date.now(), MongoDB, some APIs
• Quick tell: if the number has 10 digits, it is seconds. 13 digits = milliseconds. The converter detects this automatically.

Common Developer Scenarios

• Debugging API responses — API returns "created_at": 1775000000 — convert to see the actual date
• Database queries — "Find all records after March 1" — convert March 1 to timestamp for WHERE clause
• Log analysis — correlate log timestamps with real-world events
• JWT tokens — decode exp/iat claims to see when tokens expire (pair with JWT Decoder)
• Cron scheduling — verify that a scheduled job runs at the right time (pair with Cron Generator)