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Convert Unix timestamps to human-readable dates and dates to epoch time instantly. Supports seconds and milliseconds, multiple timezones, and ISO 8601 format. Free, no signup — everything runs in your browser.
What is a Unix Timestamp?#
A Unix timestamp (also called Epoch time) is the number of seconds that have elapsed since January 1, 1970 (UTC). It's used universally in programming, databases, APIs, and log files. This converter handles both seconds and milliseconds format.
Common Timestamps#
0— Jan 1, 1970 00:00:00 UTC (Unix Epoch)1000000000— Sep 9, 2001 01:46:40 UTC2000000000— May 18, 2033 03:33:20 UTC
Recommended Reading#
Essential resources for working with dates and time:
Why Use a Unix Timestamp Converter?#
Unix timestamps are everywhere in programming — database records, API responses, log files, JWT tokens, and cron jobs all use epoch time. Converting between human-readable dates and timestamps is a daily task for developers. This tool handles both directions instantly.
Timestamp Formats#
- Seconds — standard Unix time (10 digits, e.g. 1700000000)
- Milliseconds — JavaScript Date.now() format (13 digits)
- ISO 8601 — universal date string format (2023-11-14T22:13:20Z)
- RFC 2822 — email/HTTP header format
Privacy & Security#
This tool runs 100% in your browser. No data is sent to any server. Perfect for converting timestamps from production logs without exposing sensitive information.
Recommended Reading#
Essential resources for working with dates and time in code:
- Designing Data-Intensive Applications — essential reading for backend systems and data engineering
- The Linux Command Line — essential reading for Linux administration and scripting
- Web API Design — essential reading for REST API development
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