Find how long between two moments for planning, SLAs, or travel. Uses your local zone for both inputs; pair with other date tools for named time zones.
First
Second
Difference
Choose both dates.
Related tools
How it works
Each value is parsed as local civil time; the UTC instant difference drives the result.
Breakdown fixes days first, then rolls hours, minutes, and seconds within that span.
Order
Earlier versus later does not change the magnitude; only the absolute gap is shown.
Precision
Uses millisecond precision from your browser’s Date implementation.
Common questions
- Inclusive counts?
- This is elapsed time between instants, not calendar-day counting.
- Cross midnight?
- Handled automatically via UTC math.
- Different zones?
- Both sides use your local zone; convert separately if you need named zones.
- Years?
- Use the age calculator for calendar years and months.