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Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates. Essential tool for developers.

Current Timestamp (Seconds)

0

🔢 Timestamp → Date

📅 Date → Timestamp

💡 Unix timestamp represents the number of seconds (or milliseconds) since January 1, 1970, 00:00:00 UTC (Epoch).

📖 How to Use

  1. Select seconds or milliseconds unit at the top
  2. Choose your timezone (default: browser timezone)
  3. Timestamp → Date: Enter a number to convert to various date formats
  4. Date → Timestamp: Enter date and time to convert to timestamp
  5. Click results to copy

✨ Features

  • ✓Unix timestamp ↔ date/time conversion
  • ✓Real-time current timestamp display
  • ✓Seconds/milliseconds unit selection
  • ✓Multiple date formats (ISO 8601, RFC 2822, etc.)
  • ✓Timezone selection support
  • ✓Relative time display (e.g., 3 days ago)
  • ✓One-click copy

📐 Formula

Unix Timestamp = Seconds elapsed since Jan 1, 1970 00:00:00 UTC

💡 How It Works

  • •Unix timestamp (Epoch time) is the number of seconds since January 1, 1970, 00:00:00 UTC.
  • •Millisecond timestamps (used by JavaScript Date.now()) are 1000× the second timestamps.
  • •The same timestamp shows different local times depending on the timezone.
  • •ISO 8601: International standard date/time format. e.g., 2024-01-15T09:30:00.000Z
  • •RFC 2822: Format used in email headers. e.g., Mon, 15 Jan 2024 09:30:00 GMT
  • •Year 2038 problem: 32-bit systems may overflow on January 19, 2038.

❓ FAQ

Q. What is a Unix timestamp?

A. The number of seconds since January 1, 1970, 00:00:00 UTC (Epoch). It's the standard for representing time across systems.

Q. How do I tell seconds from milliseconds?

A. By digit count: seconds have 10 digits (~1.5 billion), milliseconds have 13 digits (~1.5 trillion).

Q. How to get a timestamp in JavaScript?

A. Date.now() returns milliseconds, Math.floor(Date.now()/1000) returns seconds.

Q. What is the Year 2038 problem?

A. The maximum timestamp representable by a 32-bit signed integer is January 19, 2038, 03:14:07 UTC. 64-bit systems don't have this issue.

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