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Hours calculator

Processed in this browser

This tool never uploads your input.

Estimates only. Not medical, legal, or financial advice.

How long from 09:15 to 17:45, plus duration add and decimal hours for a timesheet. This is not a paycheck calculator and not an overtime-law engine.

A timesheet wants decimal hours or you need the span between two clocks. That is this page.

Paycheck calculator is money. Date difference is calendar days. Timezone converter is “what time is it there.”

Punch times, not overtime law

Start, end, break → elapsed hours. We do not apply FLSA overtime, state rounding, or night differentials. Cross-midnight shifts follow the form. Date-only spans are date difference. Paycheck tax is a % you enter.

How to use it

  1. Enter start and end, or add durations.
  2. Copy decimal or HH:MM to match the sheet.
  3. Overnight work: be explicit about the date.

Honest limits

  • Not FLSA overtime.
  • Not a punch-clock with geofence.
  • DST days can be 23 or 25 hours in the real world; this UI may not model that.

This is clock math, not HR software.

FAQ

What about a shift past midnight?

If both times are on one clock face, ‘10pm to 6am’ is ambiguous. Use a date-aware span or add 24 hours yourself when the UI is same-day only.

Is this a paycheck calculator?

No. Paycheck turns hours and a rate into money with a tax % you type. This page is time.

Decimal hours vs HH:MM?

Payroll systems disagree. 1.5 hours is 1:30. We convert; we do not know ADP’s rounding.

Breaks?

Subtract them as a duration if the form lets you; we do not invent a lunch policy.

Are times uploaded?

No.

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