Current time: --|Weekday: --
Date Calculator (Online Days & Interval)
Two common actions: date difference and date offset.
Date difference (Time interval calculator)
Choose start and end dates — results update automatically.
Date Offset (Online Date Calculator)
Choose base date, offset value and unit — result updates automatically.
FAQ
Does the date difference include endpoints?
By default, the result is the number of days strictly between two dates (non-inclusive). If you need inclusive range, add 1 day after calculation. Use this online date calculator to quickly obtain date intervals and day counts.
How are month/year offsets handled across boundaries?
For month/year offsets, the original day is retained. If the target date does not exist (e.g., Jan 31 + 1 month), it will roll to the last day of that month. You can use this as an online date calculator and date days counter.