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Timestamp Converter

Convert UNIX timestamps to readable dates and vice versa with timezone support

Current Time
2025-10-04 12:36:33 (Local)

Input

Selected: Local (UTC+0)
(Ignored for timestamp input)
Selected: UTC (UTC+0)

Batch Conversion

About UNIX Timestamps

A UNIX timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970 00:00:00 UTC (the UNIX epoch). It's widely used in programming and databases to represent dates and times in a timezone-independent format.

Features

  • Bidirectional Conversion: Convert timestamps to dates or dates to timestamps
  • Timezone Support: Select input and output timezones independently
  • Multiple Formats: ISO 8601, RFC 2822, human-readable, and relative time
  • Auto-Detection: Automatically detects whether input is a timestamp or date
  • Batch Processing: Convert multiple timestamps at once
  • CSV Export: Download batch conversion results as CSV
  • Precision: Supports both seconds (10 digits) and milliseconds (13 digits)
  • Privacy: 100% client-side processing - your data never leaves your browser

Common Use Cases

  • Debugging API responses containing timestamps
  • Converting database timestamps to human-readable dates
  • Testing date/time functionality in applications
  • Analyzing log files with timestamps
  • Scheduling tasks across different timezones

Supported Formats

Input:

  • UNIX timestamp in seconds (10 digits): 1705287000
  • UNIX timestamp in milliseconds (13 digits): 1705287000000
  • ISO 8601: 2024-01-15T10:30:00Z
  • Various date formats: 2024-01-15, 2024/01/15 10:30, 15.01.2024

Output:

  • UNIX timestamp (seconds and milliseconds)
  • ISO 8601: 2024-01-15T10:30:00+09:00
  • RFC 2822: Mon, 15 Jan 2024 10:30:00 +0900
  • Human Readable: January 15, 2024 10:30:00 AM KST
  • Relative Time: 2 hours ago, in 3 days