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Kalkulator sati

How the online Hours Calculator works

Choose the time problem you need to solve, enter clock times or durations, and instantly get readable hours and minutes, decimal hours, total minutes and seconds, percent-of-day math, weekly target progress, and other work-hour insights.

  1. 01

    Choose the right time tool

    Use Duration for time between two clock points, Add hours for stacked blocks, Convert for decimal time math, Work hours for a weekly timesheet, and Add/Subtract time to shift a clock forward or backward.

  2. 02

    Enter times, breaks, or work blocks

    Tap Now for the current time, add break minutes, use presets such as an 8-hour or night shift, or fill in a full work week to total hours faster.

  3. 03

    Read the result in multiple formats

    Alongside the main answer, the calculator shows decimal hours, total minutes, total seconds, percent of an 8-hour shift, percent of a 40-hour week, overtime, overnight shifts, and natural-language summaries.

Why use an hours calculator instead of manual math

Manual time math gets messy fast when breaks, overnight shifts, decimal conversions, and weekly totals are involved. This online hours calculator helps with timesheets, payroll, freelance billing, shift planning, and overtime checks more accurately.

What this hours calculator can do

  • Calculate time between two times Measure exact hours, minutes, seconds, and percent of day between two clock times, with optional break deduction and overnight support.
  • Add multiple time blocks Combine many hour-and-minute entries into one total duration, decimal-hour output, and a visual breakdown for logs or timesheets.
  • Convert to decimal hours Turn days, hours, minutes, and seconds into decimal hours, total minutes, total seconds, and practical ratios such as percent of a day or shift.
  • Track work hours by week Enter start, end, and break times for each day of the week to see weekly totals, the longest day, overtime, overnight shifts, and estimated pay.

Hours calculator, work hours, and decimal time FAQ

Quick answers about time between two times, night shifts, weekly timesheets, overtime, and decimal hours.

How do I calculate hours between two times?
Open the Duration tab, enter the start and end times, add break minutes if needed, and click Calculate result to see the total in hours and minutes, decimal hours, minutes, and seconds.
What if the end time is earlier than the start time?
The calculator automatically treats the end time as the next day, so overnight shifts like 22:00 to 06:00 still produce the correct result.
What are decimal hours and when do I need them?
Decimal hours express minutes as a fraction of an hour, such as 4 hours 15 minutes = 4.25 hours. This format is common in payroll, timesheets, hourly billing, and time-tracking software.
Does break time get subtracted automatically?
Yes. Enter break minutes in the Duration or Work hours tabs and the calculator removes that time from the net result.
Can I add several time blocks together for a timesheet?
Yes. The Add hours tab lets you add multiple rows, label them, total them into one readable duration, convert them to decimal hours, and review their distribution.
Can the Work hours tab calculate a full weekly total?
Yes. You can enter all 7 days, see each daily total, track the weekly total, compare it with a weekly target, count overnight shifts, and estimate pay from an hourly rate.
How do I convert minutes or seconds into decimal hours?
Open Convert to hours, enter days, hours, minutes, or seconds, and the tool returns decimal hours, total minutes, total seconds, percent of day, and related ratios.
Who is this hours calculator for?
It is useful for employees, shift managers, freelancers, payroll teams, students, and anyone who needs fast, accurate time math for work, study, or planning.