Date Calculators
Days between dates, adding days to a date, the day of the week, week numbers, hours between times and weekly work hours.
8 pages
- Date Difference Calculatorthe number of days between two dates, also in weeks, in years, months and days, and as working days (Monday to Friday).
- Add Days to a DateAdd or subtract days, working days, weeks, months or years from any date to find the resulting date and its day of the week. Useful for deadlines, notice periods and due dates.
- Day of the Week Finderwhich weekday any date fell on, or will fall on, plus its day of the year, ISO week number and whether it is a leap year.
- Current Week Numbertoday's ISO-8601 week number of the year (weeks start on Monday), updated live.
- Day of the Yeartoday's day number in the year (1 January is day 1), out of 365 or 366, updated live.
- Days Left in the Yearhow many days remain in the current year after today, updated live.
- Time Duration Calculatorthe hours and minutes between two clock times, less a break, in decimal hours too. Works across midnight for night shifts.
- Work Hours Calculatorenter start, end and break times for each day to get the week's total hours, overtime and pay. A simple weekly timesheet.

