Convert between Unix timestamp and human-readable date
Unix epoch time is the number of seconds that have elapsed since January 1, 1970 (midnight UTC), used widely in programming.
Yes, the converter automatically detects and handles both second and millisecond precision timestamps.
Yes, convert in both directions — from epoch to human-readable dates and from dates to epoch timestamps.
A 10-digit timestamp represents seconds since the Unix epoch, while a 13-digit timestamp represents milliseconds. Languages like JavaScript use milliseconds by default (Date.now()), whereas languages like Python and PHP typically use seconds.
The Year 2038 problem occurs because 32-bit systems store Unix time as a signed integer, which overflows on January 19, 2038. Modern 64-bit systems are unaffected, and most software has already been updated to use 64-bit timestamps that will work for billions of years.