Date and Time Calculators 2026 - Duration, Working Days, Shift
What makes the date and time category useful
This category groups calculators that solve closely related real-world tasks, so you can move from a quick estimate to a more specific planning tool without restarting the process.
Calculate the exact duration between any two dates and times in days, hours, and minutes
Count working days between dates while excluding weekends and public holidays
Sum shift hours including overnight, breaks, and overtime for payroll
Convert hours to days, minutes to seconds, and months to days in one click
Find chronological age between any two dates for school, sport, or medical use
Payroll and timesheets
Total shift hours and overtime accurately, including overnight shifts and unpaid breaks.
Project scheduling
Count working days and durations to set realistic deadlines around weekends and holidays.
Age and milestone tracking
Find precise age between two dates for sports brackets, school enrolment, and birthdays.
All Date and Time Calculators
Time Duration Calculator
Calculate hours and minutes between two times.
Month to Day Converter
Convert months to exact days with leap year toggle.
Seconds and Minutes Converter
Convert between seconds, minutes, and hours instantly.
Hours to Days Converter
Convert hours into days and remaining hours.
Time to Minutes Converter
Convert hours, minutes, and seconds into total minutes.
Chronological Age Calculator
Find exact age in years, months, and days from birth date to any date.
Age Calculator Between Two Dates
Find the exact time difference between any two calendar dates.
Working Days Calculator
Count business days between two dates.
Shift Hours Calculator
Calculate worked hours for day or overnight shifts.
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How do I calculate working days between two dates?
Count total days, subtract weekends, then subtract any public holidays in the range. From 1 January to 31 January 2026, total days are 31, weekends are 8, leaving 23 working days before holidays.
How many hours are in a year?
A non-leap year has 365 days times 24 hours, which equals 8,760 hours. A leap year has 8,784 hours. Working hours at 40 hours per week over 52 weeks total 2,080 hours per year.
How do I work out shift hours that span midnight?
Subtract the start time from 24 hours, then add the end time. A shift from 22:00 to 06:00 equals 2 hours plus 6 hours, which totals 8 hours. Subtract any unpaid breaks for paid hours worked.
How do I convert hours to days?
Divide the hours by 24. 60 hours equals 60 divided by 24, which is 2.5 days. For working days at 8 hours each, 60 hours equals 7.5 working days.
How do I find the difference between two dates in years and months?
Subtract the years first, then adjust by months. From 15 March 2020 to 1 December 2026, the gap is 6 years and 8 months and 16 days, or roughly 80.5 months total.
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