Unix Timestamp Converter
Convert a Unix epoch timestamp into a readable date and time, and turn any date back into a timestamp. The current epoch time ticks live below.
What a Unix timestamp is, and why it exists
Behind almost every app, database and website is a quiet, universal way of recording time: the Unix timestamp. Instead of storing a date as words and numbers in some local format, computers often store a single integer, the number of seconds that have elapsed since the stroke of midnight, in UTC, on the first of January 1970, a moment programmers call "the epoch." It is an elegant idea. One plain number, the same everywhere on Earth, with no time zone, no language and no ambiguity, which makes it perfect for comparing, sorting and calculating moments inside software.
Turning machine time back into human time
This converter bridges the machine format and the human one in both directions. Paste a timestamp and it shows you the date and time it represents, in your local time and in UTC; enter a date and it gives you the timestamp back, in both seconds and milliseconds. The live counter at the top shows the current epoch second ticking steadily upward, which is a neat way to see the concept in motion. Developers reach for this constantly when reading server logs, debugging an API, working with a database, scheduling jobs, or checking when a token, a file or a record was created. Anyone who has stared at a row like 1751000000 in a spreadsheet and wondered what date it means will find the answer here in a second.
A famous deadline in the future
There is a historical curiosity worth knowing. Because many older systems store the timestamp in a signed 32-bit number, they will run out of room in January 2038, an event nicknamed the "Year 2038 problem," when the counter would overflow and dates could wrap around to 1901. Modern systems use larger 64-bit numbers and are safe for billions of years, but it is a neat reminder that even the cleanest way of counting time has its limits, much as the older Y2K worry did at the turn of the millennium. For everyday date maths in human terms rather than epoch seconds, the date-difference and age calculators are the friendlier tools, and the world clock will tell you what that timestamp means as a wall-clock time anywhere on Earth.