Calctiva

Work Hours Calculator

Enter shifts for a seven-day time card and see regular hours, overtime, and estimated pay update as you work.

Weekly time card

January 3, 2000 to January 9, 2000

Shift 1
Day total
0 min

Shift 1
Day total
0 min

Shift 1
Day total
0 min

Shift 1
Day total
0 min

Shift 1
Day total
0 min

Shift 1
Day total
0 min

Shift 1
Day total
0 min
Settings
Time rounding

Rounding applies to each start and end time. Break minutes are deducted afterward.

Overtime

Daily and weekly thresholds work independently. Weekly overtime applies only to time not already counted as daily overtime.

Estimated pay
Private device storage

Saving is off by default. When enabled, this time card stays in this browser and is not transmitted to a server.

Anyone who uses this browser profile may be able to see saved entries.

Weekly totals

0 min total, 0 min overtime

Total hours
0 min
Regular hours
0 min
Daily overtime
0 min
Weekly overtime
0 min
Estimated pay
$0.00

Report

Enter at least one complete shift to enable reports.

Work hours and pay are estimates only. This calculator does not provide payroll, employment, tax, contractual, or legal advice. Verify the rules and records that apply to you.

Work hours examples

A standard work week

Enter one shift per weekday and subtract unpaid breaks to see the weekly total.

Split and overnight shifts

Add multiple shifts to a day or enter an end time earlier than the start for overnight work.

Overtime and estimated pay

Enable the thresholds that apply to you, then enter one base rate, currency, and overtime multiplier.

How work hours are calculated

Each shift runs from its start time to its end time. An end time at or before the start is treated as the following day, and break minutes are deducted after optional clock-time rounding.

Daily overtime is allocated first. Weekly overtime then applies to remaining regular minutes after the weekly threshold, so the same minute is not counted in both overtime categories.

Calculations stay in your browser. Device storage is optional and off until you enable it; disabling it removes the saved time card immediately.

Frequently asked questions

Can I enter more than one shift per day?
Yes. Add as many shifts as needed. The calculator flags shifts that overlap.
How are overnight shifts handled?
When the end time is at or before the start time, the shift is treated as ending on the next day.
Are daily and weekly overtime combined?
They can be enabled independently. Time already classified as daily overtime is not classified again as weekly overtime.
Does Calctiva store or transmit my time card?
Nothing is sent to a server. Optional browser storage is off by default, and turning it off removes the saved copy immediately.