Epoch & Unix Time Converter Online
Convert between Unix timestamps and human-readable dates.
Handle seconds, milliseconds, and more with ease.
Timestamp to Date
Supports seconds (10 digits), milliseconds (13 digits), microseconds (16+ digits)
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Date to Timestamp
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Understanding Epoch Time
Epoch time, also known as Unix time or POSIX time, is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970.
What is Epoch Time?
- ✓ The number of seconds since January 1, 1970 (UTC)
- ✓ Used as a standard time representation in computing
- ✓ Simple, standardized way for computer systems to handle time
Seconds vs. Milliseconds
- • Strict Unix time: seconds (10 digits)
- • JavaScript
Date.now(): milliseconds (13 digits) - • Some systems: microseconds (16+ digits)
- • This tool auto-detects the format for you
Why is it Used?
It's a simple, standardized way for computer systems to handle time. Since it's just a number, it's easy to store, compare, and calculate time differences without worrying about time zones, daylight saving, or different calendar systems.
Features of this Tool
- ✓ Real-time two-way conversion
- ✓ Auto-detects seconds, ms, and µs
- ✓ "Set to now" functionality
- ✓ Displays results in local time and UTC
- ✓ Client-side for privacy and speed