Overtime & Hours Calculator

About Overtime & Hours Calculator

How the Calculation Works

Value	Formula	Example (9:00 AM to 5:30 PM, 30 min break)
Gross hours	End time - Start time	5:30 PM - 9:00 AM = 8.5 hours
Net hours	Gross hours - Break duration	8.5 - 0.5 = 8.0 hours
Weekly total	Sum of all daily net hours	8 + 8 + 8 + 8 + 8 = 40 hours
Overtime hours	Weekly total - Overtime threshold	42 - 40 = 2 overtime hours
Regular pay	Regular hours x Hourly rate	40 x $20 = $800
Overtime pay	Overtime hours x Hourly rate x 1.5	2 x $20 x 1.5 = $60
Total pay	Regular pay + Overtime pay	$800 + $60 = $860

Timesheet Layout

Column	What to Enter	Notes
Day	Pre-filled Monday through Sunday	All seven days shown; leave blank for days off
Start time	Clock-in time (e.g. 9:00 AM)	24-hour and 12-hour formats accepted
End time	Clock-out time (e.g. 5:30 PM)	Must be after start time
Break (minutes)	Total unpaid break time	Subtracted from gross hours; enter 0 for no break
Daily hours	Auto-calculated	Shows net hours after subtracting breaks

Overtime Rules by Country

The default overtime threshold is 40 hours per week at 1.5x the regular rate. This matches the US Fair Labor Standards Act (FLSA) standard. Other countries have different rules:

Country	Standard Hours (per week)	Overtime Rate	Notes
United States	40	1.5x (time-and-a-half)	FLSA federal standard; some states have stricter rules
United Kingdom	48 max (opt-out available)	No statutory overtime rate	Working Time Regulations; overtime rates set by employer
Canada	40 (federal) / varies by province	1.5x	Alberta, BC, Ontario all use 1.5x after 44, 40, 44 hours respectively
Australia	38	1.5x first 2 hours, 2x after	National Employment Standards; varies by award
EU average	40-48	Varies by country	EU Working Time Directive caps at 48 hours including overtime

Adjust the overtime threshold and check with your local regulations for your specific situation.

Summary Dashboard

Card	What It Shows
Total hours	All hours worked this week (regular + overtime)
Regular hours	Hours up to the overtime threshold
Overtime hours	Hours beyond the threshold, calculated at 1.5x
Days worked	Number of days with entries
Regular pay	Regular hours multiplied by your hourly rate
Overtime pay	Overtime hours at 1.5x the rate
Total pay	Sum of regular and overtime pay
Progress bar	Visual indicator of how close you are to the overtime threshold

Multi-Currency Support

The calculator supports 8 currencies: USD, GBP, EUR, CAD, AUD, INR, JPY, and CHF. Select your currency from the dropdown next to the hourly rate input. All pay figures are formatted with the correct symbol and decimal places for your chosen currency.

Common Weekly Schedules

Schedule	Hours/Day	Days/Week	Weekly Total	Overtime at 40h?
Standard 9-5	8 (with 1h lunch)	5	40	No
Long shift	10	4	40	No
Part-time	6	5	30	No
Overtime week	9	5	45	Yes (5h OT)
Weekend warrior	12	3	36	No

Tips for Accurate Time Tracking

Tip	Why It Matters
Log times daily, not at week's end	Memory fades quickly; same-day entries are far more accurate
Include all break time	Unpaid breaks must be subtracted for accurate pay calculations
Round consistently	Most employers round to the nearest 15 minutes; pick a system and stick to it
Note early starts and late finishes	These add up and may push you into overtime
Compare to your payslip	Cross-check the calculator's total with your actual pay to spot discrepancies

For a simpler hours calculation between two times without the weekly layout, the hours calculator handles single entries. To count business days between dates, the work days calculator excludes weekends and holidays. All calculations happen in your browser with no data leaving your device.

Is Unpaid Break Time Required?

Break rules vary by jurisdiction, and most places treat short rest breaks as paid and meal breaks as unpaid. Under US FLSA rules (29 CFR 785.18-19), rest breaks shorter than 20 minutes must be paid and counted toward hours worked, while bona fide meal periods of 30 minutes or more can be unpaid if the employee is fully relieved of duty. California goes further - a non-waivable 30-minute unpaid meal break is required for shifts over 5 hours, with a second meal break for shifts over 10 hours. In the UK, the Working Time Regulations 1998 entitle most workers to a 20-minute rest break if the working day is longer than 6 hours, but there is no legal requirement for this break to be paid. When filling in the Break column, only enter minutes that are unpaid under your local rules - paid coffee breaks should not be subtracted.

Worked Example: A Four-Day Week with Overtime

A worker in the US is paid $22/hour and worked the following week: Monday 8:00-18:30 with a 30-minute unpaid lunch, Tuesday 8:30-18:00 with 30 minutes, Wednesday 9:00-19:30 with 45 minutes, Thursday 8:00-17:00 with 30 minutes, no work Friday through Sunday.

• Monday: 10.5 gross - 0.5 break = 10.0 hours
• Tuesday: 9.5 gross - 0.5 break = 9.0 hours
• Wednesday: 10.5 gross - 0.75 break = 9.75 hours
• Thursday: 9.0 gross - 0.5 break = 8.5 hours
• Weekly total: 37.25 hours

Because the total sits below 40 hours, no federal overtime applies at the weekly level - the worker earns 37.25 x $22 = $819.50 for the week. However, if the same worker were covered by California Wage Order rules, daily overtime would kick in: Monday has 2.0 hours above the 8-hour daily threshold at 1.5x, Wednesday has 1.75 hours at 1.5x, Tuesday has 1.0 hour at 1.5x, and Thursday has 0.5 hours at 1.5x. That single change lifts total pay to roughly $853.25 - a useful reminder that weekly-only overtime calculators understate pay for California workers. Use the overtime threshold field to approximate daily overtime by entering a lower weekly number if you want the calculator to treat more hours as premium-rate.

Record-Keeping and Rounding Rules

US employers must keep time records for at least three years under 29 CFR 516.2, capturing hours worked each day and total hours each week. Federal rules permit rounding under 29 CFR 785.48(b), but only if the practice is neutral over time - rounding that systematically favours the employer (always down, for example) has been struck down in cases such as Donohue v AMN Services (California Supreme Court, 2021). The safest increments are 5, 6, 10, or 15 minutes, applied symmetrically. UK employers must keep adequate records to demonstrate compliance with the 48-hour weekly average under regulation 9 of the Working Time Regulations, and HMRC expects payroll records to be retained for six tax years. If your payroll system rounds start and end times, enter the rounded values rather than the actual clock-in times so the calculator matches what you will actually be paid.

Timesheet Mistakes That Cost Money

Mistake	Why It Happens	Impact
Forgetting the break deduction	Entering gross hours instead of net	Overstates pay by 2.5-5 hours per week
Confusing decimal and minutes	Entering 8:30 as 8.3 hours instead of 8.5	Loses 12 minutes per shift, ~1 hour per week
Treating overnight shifts as negative	End time earlier than start time	Zero hours recorded; fixed by the calculator's midnight-rollover logic
Ignoring daily overtime thresholds	Assuming only weekly overtime counts	Understates pay in California, Alaska, Nevada, Colorado
Double-counting lunch	Break subtracted twice when entered as both meal and break	Understates hours by 30-60 minutes per day
Not logging same-day	Relying on memory at week's end	APA surveys suggest 1-8% payroll errors from retrospective entry

Print, Screenshot, or Export

There is no database or login tied to this timesheet. All entries live in your browser for the length of the session. To save a copy, use your browser's print function (Ctrl+P on Windows, Cmd+P on Mac) - the layout is clean enough to save as a PDF from the print dialogue. For a quick record on mobile, take a screenshot of the summary section. If you need to build a recurring weekly routine around these hours, pair the calculator with the Pomodoro timer for focus tracking or the checklist maker for task-level follow-through.

Sources

• US DOL - Overtime Pay Under the FLSA
• 29 CFR Part 785 - Hours Worked (eCFR)
• GOV.UK - Maximum Weekly Working Hours
• California DIR - Overtime FAQ
• Acas - Working Hours and Rest
• Fair Work Ombudsman (Australia) - Overtime Pay