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Time calculators
Quick, free tools for the arithmetic of time — hours between two times, timesheet totals, decimal hours. When you are ready to stop doing it by hand, that is what InstaClock is for.
- CalculatorHours CalculatorWork out the hours and minutes between any two times — breaks and overnight shifts included.Open→
- CalculatorTime Card CalculatorAdd up a whole week of shifts — clock in, clock out, and breaks for each day — into one weekly total.Open→
- CalculatorDecimal Hours ConverterConvert hours and minutes to decimal hours for payroll — and back again — in both directions.Open→
- CalculatorHours From Now CalculatorAdd hours and minutes to the current time to see exactly what time — and what day — it will be.Open→
- CalculatorBillable Hours CalculatorTurn the time you worked and your hourly rate into an invoice amount — rounded to your billing increment.Open→
- CalculatorTime Duration CalculatorMeasure the exact time between two date-times — even when it spans multiple days.Open→
- CalculatorSplit Shift CalculatorAdd up two work periods in one day and see the unpaid gap between them.Open→
- CalculatorBiweekly Time Card CalculatorTotal two weeks of shifts at once — with a subtotal for each week and a combined pay-period total.Open→
- CalculatorMinutes to Decimal ConverterTurn a number of minutes into decimal hours for payroll — with a quick reference chart.Open→
Calculators answer one question. InstaClock answers the rest.
Where did the week go? Which work actually adds up? Track your time once and let the ledger explain it.
Open your ledger→
Free to start · No card required