Direct answer

The UseCOS Work Hours Calculator computes exact worked hours and minutes across shifts, subtracts unpaid meal and lunch breaks, separates regular from overtime hours based on standard weekly thresholds (e.g. 40 hours), and estimates gross wage totals 100% in-browser.

Break Deductions: Configurable 0 to 90 min per shift; Accurately deducts unpaid meal breaks from gross elapsed shift time.
Overtime Handling: Weekly Thresholds & 1.5x Multipliers; Splits regular time and overtime pay above statutory 40-hour thresholds.
Overnight Shifts: Automatic Midnight Rollover; Seamlessly calculates night shifts starting in PM and ending in AM.
Not a substitute for: Official corporate time-clock and payroll compliance systems; Does not replace certified electronic logging devices or employer payroll records.

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Work Hours & Timesheet Calculator

Calculate total working hours, deduct lunch breaks, track weekly overtime, and estimate gross wages.

Hourly Wage ($/hr)

Weekly Overtime Threshold

Weekly threshold only. BC and Alberta also have a daily overtime rule (over 8 hrs/day) this calculator doesn't model, so a long single-day shift under the weekly total can still owe overtime there.

Overtime Multiplier (e.g. 1.5x)

Day / Date	Start Time	End Time	Break (Mins)	Total Hours	Action
				7h 30m 7.50 hrs
				7h 30m 7.50 hrs
				7h 30m 7.50 hrs
				7h 30m 7.50 hrs
				7h 30m 7.50 hrs

Total Hours Worked

37h 30m

37.50 decimal hours

Regular vs. Overtime

Regular: 37.50h

Overtime: 0.00h

Regular Pay

$937.50

No overtime hours

Total Estimated Gross Pay

$937.50

Before payroll taxes & deductions

How to Calculate Hours Worked and Overtime

To calculate total work hours for a payroll period or timesheet:

Convert Shift Times to Total Elapsed Minutes: Subtract the start time from the end time (e.g., 9:00 AM to 5:00 PM = 8 hours / 480 minutes).
Deduct Unpaid Breaks: Subtract lunch and designated unpaid rest breaks (e.g., 480 min − 30 min break = 450 worked minutes = 7.5 decimal hours).
Aggregate Weekly Hours: Sum all shifts across the pay period.
Apply Overtime Rates: Hours worked in excess of 40 hours per week (or daily overtime rules depending on jurisdiction) are multiplied by 1.5× your base hourly rate.

Decimal Hours Conversion Chart

Minutes	Decimal Hours	Minutes	Decimal Hours
15 mins	0.25 hrs	45 mins	0.75 hrs
30 mins	0.50 hrs	60 mins	1.00 hrs

Overtime Thresholds & Mandatory Break Decision Matrix (2026)

Statutory overtime triggers and mandatory unpaid eating periods across Canadian and US jurisdictions.

Jurisdiction	Daily Overtime Trigger	Weekly Overtime Trigger	Overtime Pay Rate	Mandatory Meal Break Law
Ontario (ESA 2000)	No daily threshold	After 44 hours / week	1.5× regular rate	30 minutes unpaid eating period after 5 continuous hours worked. Can be split into two 15-min periods by agreement.
British Columbia (ESA)	After 8 hrs (1.5×) & 12 hrs (2.0×)	After 40 hours / week	1.5× (8h+) / 2.0× (12h+)	30 minutes unpaid meal break after 5 continuous hours. If required to work or be on call during meal, break must be paid.
Alberta (Employment Standards)	After 8 hours / day	After 44 hours / week	1.5× (whichever is greater)	At least 30 minutes rest (paid or unpaid) within every 5 consecutive hours worked.
Federal Canada (Labour Code)	After 8 hours / day	After 40 hours / week	1.5× regular rate	30 minutes unpaid break every 5 continuous hours worked. Must be provided before the 5 hours conclude.
US Federal (FLSA)	No federal daily rule (state-specific)	After 40 hours / week	1.5× regular rate	Federal law does not require lunch breaks. Rest periods under 20 minutes must be counted as paid hours worked.

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Day / Date

Start Time

End Time

Break (Mins)

Total Hours

Action

7h 30m

7.50 hrs

7h 30m

7.50 hrs

7h 30m

7.50 hrs

7h 30m

7.50 hrs

7h 30m

7.50 hrs

How to Calculate Hours Worked and Overtime

To calculate total work hours for a payroll period or timesheet:

Convert Shift Times to Total Elapsed Minutes: Subtract the start time from the end time (e.g., 9:00 AM to 5:00 PM = 8 hours / 480 minutes).

Deduct Unpaid Breaks: Subtract lunch and designated unpaid rest breaks (e.g., 480 min − 30 min break = 450 worked minutes = 7.5 decimal hours).

Aggregate Weekly Hours: Sum all shifts across the pay period.

Apply Overtime Rates: Hours worked in excess of 40 hours per week (or daily overtime rules depending on jurisdiction) are multiplied by 1.5× your base hourly rate.

Minutes

Decimal Hours

Minutes

Decimal Hours

15 mins

0.25 hrs

45 mins

0.75 hrs

30 mins

0.50 hrs

60 mins

1.00 hrs

Jurisdiction

Daily Overtime Trigger

Weekly Overtime Trigger

Overtime Pay Rate

Mandatory Meal Break Law

Ontario (ESA 2000)

No daily threshold

After 44 hours / week

1.5× regular rate

30 minutes unpaid eating period after 5 continuous hours worked. Can be split into two 15-min periods by agreement.

British Columbia (ESA)

After 8 hrs (1.5×) & 12 hrs (2.0×)

After 40 hours / week

1.5× (8h+) / 2.0× (12h+)

30 minutes unpaid meal break after 5 continuous hours. If required to work or be on call during meal, break must be paid.

Alberta (Employment Standards)

After 8 hours / day

After 44 hours / week

1.5× (whichever is greater)

At least 30 minutes rest (paid or unpaid) within every 5 consecutive hours worked.

Federal Canada (Labour Code)

After 8 hours / day

After 40 hours / week

1.5× regular rate

30 minutes unpaid break every 5 continuous hours worked. Must be provided before the 5 hours conclude.

US Federal (FLSA)

No federal daily rule (state-specific)

After 40 hours / week

1.5× regular rate

Federal law does not require lunch breaks. Rest periods under 20 minutes must be counted as paid hours worked.