Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds.
Current Unix Timestamp
0
What is a Unix Timestamp?
A Unix timestamp (also known as Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. This date is known as the Unix Epoch.
Unix timestamps are widely used in computing because they provide a simple, timezone-independent way to represent a specific moment in time. They're commonly used in databases, APIs, and log files.
Common Timestamp Formats
- Seconds: 1609459200 (10 digits)
- Milliseconds: 1609459200000 (13 digits)
- ISO 8601: 2021-01-01T00:00:00Z
Frequently Asked Questions
What's the difference between seconds and milliseconds?
Unix timestamps in seconds are 10 digits, while milliseconds are 13 digits. This tool automatically detects which format you're using.
What is the Year 2038 problem?
Systems using 32-bit signed integers for timestamps will overflow on January 19, 2038. Modern systems use 64-bit integers to avoid this issue.
Is the conversion done locally?
Yes. All conversions happen in your browser. No data is sent to any server.