Hours Between Dates Calculator
Calculate the total number of hours and minutes between two calendar dates.
Hours Between Dates Calculator
Calculate the total number of hours and minutes between two calendar dates.
Enter the start date in YYYY-MM-DD format.
Enter the end date in YYYY-MM-DD format.
Real-World Examples
Long weekend
2024-03-01 to 2024-03-04
72 hours
Full week
2024-01-01 to 2024-01-08
168 hours
Year span
2024-01-01 to 2025-01-01
8,784 hours (leap year)
Common Mistakes to Avoid
Forgetting that dates default to midnight
Fix: A date entered as 2024-03-01 is treated as midnight (00:00) on that day. If you need a specific time of day, use the Time Duration Calculator instead.
Assuming every day is exactly 24 hours
Fix: Daylight saving time transitions make one day 23 or 25 hours long. This calculator uses UTC milliseconds, so DST transitions are reflected in the raw total.