This library decodes memorable Unix values and provides UTC boundaries for days and years. Each page introduces the timestamp as an instant, then shows how to use it safely in code or a query.
What the examples include
- The exact ISO 8601 UTC moment for the seconds value.
- The equivalent JavaScript millisecond value.
- The classic 1970 result caused by passing seconds directly to new Date().
- A reminder to use half-open ranges for time windows.
For live values, use the timestamp reference. To convert a calendar date, start with Date to Epoch instead.