Complete Guide to Work Hours, Lunch Break Deductions & Overtime Rules

Accurate time tracking is the cornerstone of fair compensation and payroll compliance across all Tier-1 economies, including the United States, Canada, Australia, and New Zealand. Whether you are an hourly employee auditing your paycheck, an independent contractor submitting an invoice, or a small business manager running weekly payroll, understanding how shift punch times translate into decimal hours and statutory overtime is critical.

In the United States, the primary governing statute is the federal Fair Labor Standards Act (FLSA), enforced by the Wage and Hour Division (WHD) of the U.S. Department of Labor. The FLSA sets baseline requirements for minimum wage, overtime pay, recordkeeping, and youth employment standards for non-exempt workers.

Quick-Reference: Minutes to Payroll Decimal Hours Conversion

Because traditional clocks track time in base-60 (60 minutes per hour) while financial payroll systems operate in base-100 (decimals), minutes must be converted prior to calculating gross wages. The table below outlines the standard decimal equivalents used by ADP, Paychex, QuickBooks, and federal payroll auditors:

Federal vs. State Meal & Lunch Break Regulations

One of the most frequent sources of wage litigation is the improper deduction of lunch breaks. Under federal law (29 CFR § 785.19), bona fide meal periods are not considered work time and are not compensable if the following strict conditions are met:

• Complete Relief from Duty: The employee must be completely relieved from all duties, whether active or inactive. An office worker required to eat lunch at their desk while monitoring incoming customer phone calls has not received a bona fide meal break, and all 30 or 60 minutes must be paid.
• Duration Threshold: Bona fide meal periods ordinarily must last at least 30 minutes. Rest periods of short duration—running from 5 minutes to about 20 minutes—are customary in industry, promote employee efficiency, and must be counted as compensable hours worked under federal law.
• State-Specific Mandates: While federal law does not mandate meal breaks, over 20 states enforce explicit statutory meal break requirements. For example, California Labor Code § 512 mandates a 30-minute unpaid meal period before the end of the 5th hour of work; failure to provide it triggers a statutory penalty of one additional hour of pay at the regular rate.

How Federal Overtime is Calculated: The 40-Hour Workweek Rule

Unless exempt under the executive, administrative, professional, or outside sales exemptions, non-exempt employees covered by the FLSA must receive overtime pay for all hours worked over 40 in a workweek at a rate not less than one and one-half times (1.5x) their regular rate of pay.

Worked Example: If an hourly construction employee earning $25.00/hour works 48 hours in a standard Monday-to-Sunday workweek with a 30-minute daily lunch break deducted:

• Regular Hours: 40.0 hours × $25.00/hr = $1,000.00
• Overtime Hours: 8.0 hours × ($25.00 × 1.5 = $37.50/hr) = $300.00
• Total Weekly Gross Earnings = $1,300.00 (prior to FICA, Medicare, federal, and state withholdings).

Regional Jurisdictional Variations (US, Canada, Australia)

While the federal FLSA sets a 40-hour weekly threshold without daily overtime limits, regional jurisdictions enforce stricter labor codes: