Timestamp Converter

Convert Unix timestamps to dates and back

utilities Online Tools 💰 free 👁️ 2

⏱️ Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds.

Current Timestamp
—
Seconds (10 digits)
—
Milliseconds (13 digits)
Waiting…

💡 About Timestamps

A Unix timestamp is the number of seconds since 1970-01-01 00:00:00 UTC.
Seconds: 10 digits, e.g. 1735689600
Milliseconds: 13 digits, e.g. 1735689600000
The tool auto-detects the format based on length.

📖 How to Use

A Unix timestamp is the number of seconds since 1970-01-01 00:00:00 UTC.

Two conversions:

  1. Timestamp → Date: enter a 10- or 13-digit number, auto-detected
  2. Date → Timestamp: pick a date and time, get both seconds and milliseconds

About

Convert Unix timestamps to human-readable dates and vice versa. Supports both 10-digit seconds and 13-digit milliseconds, with automatic format detection.

❓ FAQ

How do I tell seconds from milliseconds?▾
Seconds have 10 digits (e.g., 1735689600). Milliseconds have 13 (e.g., 1735689600000).
What is the Year 2038 problem?▾
On 32-bit systems, timestamps overflow after 2038-01-19. Modern 64-bit systems are not affected.