Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and vice versa.
Current Epoch Time
Timestamp to Date
Date to Timestamp
What is a Unix Timestamp?
The Unix timestamp (or Epoch time) is a way to track time as a running total of seconds. It represents the number of seconds that have elapsed since the Unix Epoch: January 1, 1970, at 00:00:00 UTC, not counting leap seconds.
Seconds vs Milliseconds
- Seconds (10 digits): Standard for PHP, MySQL, Unix systems. (e.g., 1704067200)
- Milliseconds (13 digits): Standard for JavaScript and Java. (e.g., 1704067200000)
The Year 2038 Problem
Because original Unix timestamps were stored as 32-bit signed integers, they will exceed their maximum value on January 19, 2038. Modern systems have migrated to 64-bit integers to solve this issue, pushing the end date billions of years into the future.
What is a Unix Epoch Timestamp?
A Unix timestamp is a way to track time as a running total of seconds. This count starts at the Unix Epoch on January 1st, 1970 at UTC. Because it is a single integer, it is incredibly efficient for databases and programming languages to store and compare, avoiding the complexities of time zones and daylight saving time.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp (or "epoch time") is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — it's a compact, timezone-independent way for computers to represent a specific moment in time.
Why do some systems use milliseconds instead of seconds for timestamps?
JavaScript's Date object and many web APIs use milliseconds since epoch for finer time precision, while Unix/Linux system timestamps traditionally use seconds — mixing the two up is a common bug source (a value 1000x too large or small).
Will Unix timestamps ever "run out"?
Yes — the classic 32-bit signed integer implementation overflows on January 19, 2038 (the "Year 2038 problem"), though modern 64-bit systems store timestamps using far larger integers and won't hit that limit for billions of years.
Does converting a timestamp here account for my local timezone?
Yes — the tool can display the equivalent UTC time and your browser's detected local timezone side by side, so you can see both representations of the same underlying moment.
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