About Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Shows current timestamp and supports multiple formats.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC (the Unix Epoch). It's a standard way to represent time in computing.
Why do some timestamps have 13 digits instead of 10?
A 10-digit timestamp is in seconds. A 13-digit timestamp is in milliseconds (used by JavaScript and Java). Our converter auto-detects the precision.
What is the Year 2038 problem?
32-bit systems store Unix time as a signed integer that will overflow on January 19, 2038. Modern 64-bit systems use larger integers that won't overflow for billions of years.
How do I get the current Unix timestamp in my code?
JavaScript: Math.floor(Date.now() / 1000). Python: import time; int(time.time()). PHP: time(). Bash: date +%s.
Can Unix timestamps be negative?
Yes! Negative timestamps represent dates before January 1, 1970. For example, -86400 represents December 31, 1969.