📆 Date Difference Calculator
Enter a start and end date to see exactly how far apart they are — as a calendar-aware years/months/days breakdown, and as total days, weeks and hours.
1. Two dates
2. Years / months / days
Calendar difference
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Calculated calendar-style (like age), so e.g. Jan 31 to Mar 1 is 1 month, 1 day — not a fixed 30-day month.
3. Totals
| Days between (exclusive) | — |
|---|---|
| Days inclusive (both dates counted) | — |
| Total weeks | — |
| Total hours | — |
Counting convention: "Days between" here is exclusive — the standard meaning of "how many days between X and Y" (Jan 1 → Jan 2 is 1 day, not 2). The inclusive row above adds 1, for when you want to count both the start and end date themselves (e.g. "how many days does this trip span").