Time and Dates Calculators
Calculate calendar differences, business days, financial-year periods and paid shift hours with clear inclusive and exclusive counting options.
Calendar days, business days and paid work hours follow different rules. Select the purpose-specific calculator, confirm whether boundary dates are included and apply the relevant state holidays or workplace conditions before using a result for an official deadline or payroll check.
How to use these calculators well
- Choose whether start and end dates are included or excluded.
- Separate calendar days, business days and paid work hours.
- Check time zones, daylight-saving changes and applicable public holidays.
Days Between Dates Calculator
Count calendar days between two dates, with inclusive and exclusive options. See full weeks and remaining days instantly, free with no signup.
Open calculatorWeeks Between Dates Calculator
Calculate the exact weeks and days between two dates, with inclusive counting available. Free instant date result with no signup or saved data.
Open calculatorBusiness Days Calculator
Count the working (business) days between two Australian dates, excluding weekends and any public holidays you list.
Open calculatorDate to Financial Year Calculator
Enter any date to identify its Australian financial year and quarter instantly. Free calculator with no signup and no dates or results saved.
Open calculatorShift Length Calculator
Calculate paid shift length after unpaid breaks, including overnight work. See total hours and decimal hours instantly for Australian timesheets.
Open calculatorAdd or Subtract Days Calculator
Add or subtract a number of days from a given date to find a future or past date, shown in Australian DD/MM/YYYY format.
Open calculatorAge in Days Calculator
Find your exact age in total days, weeks, months and years from your date of birth to today or any chosen date.
Open calculatorAustralian Time Zone Difference Calculator
Compare the time difference between Australian time zones using fixed standard or daylight saving offsets that you select manually.
Open calculatorCountdown Calculator
See exactly how many days, hours and minutes remain until a future date and time, such as an event, holiday or deadline.
Open calculatorDay of the Week Finder
Find out which day of the week any date falls on, past or future, entered in Australian DD/MM/YYYY format.
Open calculatorDecimal Hours Converter
Convert hours and minutes into decimal hours, or decimal hours back into hours and minutes, for payroll and timesheet purposes.
Open calculatorDue Date Countdown Calculator
Count down the days remaining until a bill, invoice, assignment or project due date to help you plan ahead and avoid late fees.
Open calculatorHours and Minutes Calculator
Add or subtract two amounts of time given in hours and minutes to get a combined total, useful for adding up shifts or tasks.
Open calculatorLeap Year Checker
Check instantly whether a given year is a leap year and see how many days it has, using the standard Gregorian calendar rule.
Open calculatorMonths Between Dates Calculator
Find the number of full months and days between two dates, useful for calculating contract terms, tenancy lengths or age in months.
Open calculatorPay Period Calculator
Find the start and end dates of your current pay period based on your pay cycle and a known reference pay date.
Open calculatorProject Timeline Calculator
Estimate a project's finish date from its start date and duration in working days, or check whether it fits before a deadline.
Open calculatorRecurring Date Calculator
Find the next several occurrences of a repeating event, such as a bill, meeting or reminder, based on a starting date and frequency.
Open calculatorTime Duration Calculator
Calculate the total duration between a start and finish time, shown in hours and minutes, including durations that cross midnight.
Open calculatorWorking Hours Between Dates Calculator
Estimate total working hours between two dates based on your standard business hours per weekday, useful for project and billing estimates.
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