Count days between dates only, or calculate real elapsed time between zoned date-times. Only dates-only mode can include both endpoints.
CityTimeDate · G15
Days Between Dates & Time Difference Calculator
Result
Choose inputs and calculate to see your result.
Dates-only mode supports 1000–9999. Date-and-time mode uses pinned IANA rules for 1900–2100. Historical calendar reforms and leap seconds are not modeled. How it works ↗
CityTimeDate · G15
How it works
Example: February 28 to March 1, 2024 is 2 calendar days, or 3 days when both dates are included. Dates-only mode can include both endpoints, adding one counting day. In date-and-time mode, choose a city/time zone and repeated-time occurrence independently for the start and end; each is resolved to UTC before subtraction. Results break elapsed duration into 24-hour days, hours, minutes and seconds, which are not calendar days.
Dates-only mode supports 1000–9999. Date-and-time mode uses pinned IANA rules for 1900–2100. Historical calendar reforms and leap seconds are not modeled.
Important limitations
Date-and-time mode uses named IANA zones for 1900–2100; dates-only mode supports 1000–9999. Calculations use the Gregorian calendar; leap seconds and historical calendar reforms are not modeled. Results are not guaranteed for legal deadlines. The current device time is only a default.
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