Quickly convert between Epoch time and human dates.
The Unix Epoch is the number of seconds that have elapsed since January 1st, 1970 (UTC). It is widely used in computing to represent time as a single integer.
JavaScript and many modern systems use milliseconds (13 digits), while older Unix systems typically use seconds (10 digits). Our tool handles both gracefully.
Calculations in this tool are processed in your browser's local timezone unless specified. Timestamps themselves are inherently UTC-based offsets from the epoch.