How do I calculate shift hours with breaks?

To calculate shift hours with breaks, subtract your total break time from the total shift duration. For example, if you work from 8:00 AM to 4:30 PM with a 30-minute break, your shift is 8.5 hours minus 0.5 hours equals 8 hours worked. This calculator does that math instantly when you enter your break minutes.

How do you calculate night shift hours?

Night shift hours are calculated the same way as day shifts, but the end time falls on the next calendar day. If you start at 10:00 PM and finish at 6:00 AM, you add 24 hours to the end time before subtracting: 6:00 AM + 24 hours = 30:00, minus 22:00 (10:00 PM) = 8 hours. This calculator handles overnight shifts automatically.

How many hours is a standard work shift?

Common shift lengths are 8 hours (standard day shift), 10 hours (common in manufacturing and retail), and 12 hours (used in healthcare, mining, and emergency services). A 40-hour week is typically made up of five 8-hour shifts. Some industries use rotating schedules with varying lengths.

Can I track multiple shifts per day with this calculator?

Yes. The advanced mode lets you add multiple shifts or time blocks in a single day, such as a split shift where you work a morning block and an evening block. Each block has its own start, end, and break times. The calculator adds them all up into a daily total.

How do I estimate pay from shift hours?

Enter your hourly wage in the optional pay rate field. The calculator multiplies your total paid hours by your rate to give you an estimated gross pay for the shift. For night shift premiums or weekend differentials, you can enter a higher rate to reflect your actual pay.

Shift Hours Calculator – Calculate Work Shift Duration, Break Deductions & Total Hours Worked

Shift Hours Calculator

Enter your shift start and end times to instantly see total hours worked. Handles night shifts, break deductions, multiple shifts, and optional pay estimates — free and accurate.

No data stored

Instant results

Mobile friendly

Night shift support

Break time deduction

Enter Your Shift Details

Shift Start Time

Shift End Time

For night shifts ending next day, toggle below

Break Time (minutes)

Total unpaid break minutes

Shift Type

Days Worked Per Week

Hourly Rate (optional, $)

Leave blank to skip pay estimate

Shift Pay Multiplier

Custom Multiplier

Break Type

Estimated Tax Rate (%)

Optional — shows take-home pay

Additional Shift Blocks (split shift)

Your Shift Summary

Enter your shift start and end times, then click Calculate to see total hours worked.

Total Hours Worked (this shift)

0h 0m

per shift

Shift Breakdown

Shift Start —

Shift End —

Gross Shift Duration —

Break Deduction —

Net Hours Worked —

Decimal Hours —

Hours Per Week —

Est. Shift Pay —

Est. Weekly Pay —

Tax Withheld (est.) —

Est. Weekly Take-Home —

Shift Time Breakdown

Daily vs Weekly Hours

How Shift Hour Calculation Works

Calculating shift hours sounds simple — just subtract start time from end time — but real schedules have extra details. Unpaid breaks need to come off the total. Night shifts that run past midnight need special handling. Split shifts add two or more separate blocks together.

This calculator handles all of that for you. Enter your clock-in and clock-out times, your break minutes, and the days you work. You get total hours per shift, weekly hours, and an optional pay estimate — all in seconds.

Workers in healthcare, retail, hospitality, manufacturing, and logistics especially deal with odd shift times and rotating schedules. Having a reliable tool saves time and reduces payroll errors.

Shift Hours Formula

The calculation follows a simple set of steps:

Gross Duration = End Time − Start Time (+ 24 hrs if overnight)
Paid Hours = Gross Duration − Unpaid Break Time
Weekly Hours = Paid Hours × Days Per Week
Shift Pay = Paid Hours × Hourly Rate × Multiplier

Example: 7:00 AM to 3:30 PM with a 30-min break = 8.5 hrs gross − 0.5 hrs = 8.0 paid hours. At $20/hr, that is $160 per shift and $800/week for 5 days.

Common Shift Times – Quick Reference

Shift Name	Start	End	Gross Hours
Day Shift (8 hr)	7:00 AM	3:00 PM	8 hrs
Day Shift (8.5 hr)	8:00 AM	4:30 PM	8.5 hrs
Afternoon Shift	3:00 PM	11:00 PM	8 hrs
Night Shift	11:00 PM	7:00 AM	8 hrs
12-Hour Day	6:00 AM	6:00 PM	12 hrs
12-Hour Night	6:00 PM	6:00 AM	12 hrs
10-Hour Shift	7:00 AM	5:00 PM	10 hrs
Part-Time (6 hr)	9:00 AM	3:00 PM	6 hrs

Types of Work Shifts Explained

Fixed shift: Same start and end time every day. Easy to plan around. Most office and retail roles use this.

Rotating shift: Workers cycle through different shift times — mornings one week, afternoons the next. Common in factories, hospitals, and police departments.

Split shift: Two separate work blocks in the same day with a long unpaid gap in between. Common in restaurants and transport.

On-call shift: You are available to work but may not be needed. Pay rules vary by employer and region.

12-hour compressed: Fewer days worked per week but longer shifts each day. Used in healthcare and energy sectors. Four days on and three days off is a popular pattern.

Frequently Asked Questions

Select "Overnight (ends next day)" in the Shift Type dropdown. The calculator adds 24 hours to the end time automatically. For example, if you start at 10:00 PM and finish at 6:00 AM, it reads that as 8 hours rather than treating 6:00 AM as earlier in the same day.

No — only enter unpaid breaks in the break time field. Unpaid breaks are deducted from your total hours. If your employer pays you during breaks, use the Advanced Options to switch the break type to "Paid break (not deducted)" and the minutes will stay in your total paid hours.

Open Advanced Options and click "Add Another Shift Block." You can enter a second start and end time for the evening or second block of your day. The calculator adds both blocks together for your full daily total. This is useful for jobs like restaurant work where you might do a lunch service and a dinner service with a break in between.

A common 12-hour shift schedule is three or four days on per week. Three 12-hour shifts equals 36 hours per week. Four 12-hour shifts (a compressed schedule) equals 48 hours per week — which may trigger overtime depending on your location and employer's policies.

Yes. Enter your hourly rate in the optional Hourly Rate field. The calculator multiplies your paid shift hours by that rate to show an estimated gross pay per shift and per week. If you work at a premium rate for nights or weekends, use the Shift Pay Multiplier in Advanced Options to apply the correct factor.

To convert hours and minutes to decimal, divide the minutes by 60 and add to the full hours. For example, 7 hours 45 minutes = 7 + (45 ÷ 60) = 7.75 decimal hours. The result card always shows both formats — hours and minutes as well as the decimal number — so you can use whichever your timesheet requires.

Common Shift Durations — Hours Worked After Break

Net hours worked for popular shift combinations, assuming unpaid break deduction.

Shift Start	Shift End	Gross Hours	30 min break	45 min break	60 min break	No Break

Net = Gross − Break. All times shown are for same-day shifts. Use the overnight toggle for shifts that cross midnight.

Break Deduction Table — Impact on Paid Hours

How different break lengths reduce your paid shift hours across common gross durations.

Gross Hours	0 min break	15 min	30 min	45 min	60 min	90 min

Paid hours = Gross − Break deduction. Paid breaks do not reduce this number.

Weekly Hours by Shift Length and Days Worked

Total weekly hours for different shift lengths across 3 to 7 working days.

Shift Length	3 days/wk	4 days/wk	5 days/wk	6 days/wk	7 days/wk	Annual hrs

Annual hours = weekly total × 52. Overtime may apply above 40 hrs/week in many regions.

Shift Pay Estimate by Hourly Rate and Hours Worked

Estimated gross pay per shift at common hourly rates and shift lengths (standard 1× rate).

Hourly Rate	6 hr shift	7 hr shift	8 hr shift	9 hr shift	10 hr shift	12 hr shift

Gross pay = Paid Hours × Hourly Rate. Night or weekend premiums will increase this. Use the calculator above with a multiplier for accurate estimates.

Shift Work Rules by Country — Reference Guide

Standard shift regulations, rest period requirements, and maximum hours per day around the world.

Country	Max Daily Hours	Rest Between Shifts	Max Weekly Hours	Night Shift Definition	Night Premium Required	Key Law
🇺🇸 USA	No federal limit	No federal rule	No cap (OT after 40)	Varies by employer	No (voluntary)	FLSA
🇬🇧 UK	No daily limit	11 hrs	48 hrs avg (WTR)	11 PM – 6 AM	No (voluntary)	Working Time Regulations
🇪🇺 EU	No hard daily limit	11 hrs	48 hrs avg	11 PM – 6 AM	Varies by state	EU Working Time Directive
🇦🇺 Australia	No hard limit	10–12 hrs (award)	38 hrs ordinary	Varies by award	Yes (loading applies)	Fair Work Act
🇨🇦 Canada	8–12 hrs*	8 hrs (federal)	48 hrs*	Varies by province	No (voluntary)	Canada Labour Code
🇩🇪 Germany	10 hrs max	11 hrs	48 hrs	11 PM – 6 AM	Common in contracts	ArbZG
🇫🇷 France	10 hrs (12 max)	11 hrs	48 hrs	9 PM – 6 AM	Yes	Labour Code
🇯🇵 Japan	8 hrs ordinary	No legal min	40 hrs ordinary	10 PM – 5 AM	Yes (25% min)	Labour Standards Act
🇮🇳 India	9 hrs	12 hrs	48 hrs	Varies by state	No (varies)	Factories Act
🇿🇦 South Africa	9 hrs (10 for 4-day wk)	12 hrs	45 hrs	6 PM – 6 AM	Allowance or 10% extra	BCEA

* Varies by province or collective agreement. Rules change — verify with your local labour authority. This table is for reference only.