What Is Time and a Half and How Is It Calculated
Published August 9, 2026 Β· 8 min read
Time and a half is the standard legal multiplier applied to an employee regular hourly rate for hours worked beyond standard thresholds. When you work extra hours during a demanding workweek, federal law mandates that your employer pay you 1.5 times your base rate for every qualified hour. While the core concept is straightforward, applying the rules across salaried status, bonuses, state guidelines, and variable schedules requires clear mathematical understanding.
For example, if your base rate is $20.00 per hour, your time and a half overtime rate is $30.00 per hour. If you clock 45 hours in a single workweek, those five extra hours generate $150.00 in overtime pay on top of your $800.00 base pay, bringing your weekly total gross earnings to $950.00. Over the course of a year, working just five hours of overtime each week adds $7,800.00 in total gross earnings to your income.
The History and Purpose of FLSA Overtime Laws
The legal baseline for overtime in the United States was established by Congress under the Fair Labor Standards Act (FLSA) of 1938. Introduced during the recovery era of the Great Depression, the law was created with two primary social and economic objectives:
- Protecting Workers from Overwork: Placing a financial penalty on long work hours incentivized companies to establish reasonable 40-hour work schedules and protect employee health.
- Encouraging Job Creation: By making overtime labor 50 percent more expensive than regular labor, employers were financially encouraged to hire additional workers rather than overworking existing staff.
The FLSA sets federal standards across private enterprise and federal, state, and local government employers. Unless an employee falls under a specific statutory exemption, FLSA compliance is mandatory across all 50 US states.
Step-by-Step Mathematical Calculation
Calculating time and a half pay requires three basic mathematical steps. Let us review the exact formulas used by payroll departments across the country.
Step 1: Calculate the Overtime Rate
Overtime Rate = Regular Hourly Rate x 1.5
Step 2: Calculate Regular Base Pay
Regular Pay = Base Hours (up to 40) x Regular Hourly Rate
Step 3: Calculate Overtime Earnings & Total Gross Pay
Overtime Pay = Overtime Hours x Overtime Rate
Total Gross Pay = Regular Pay + Overtime Pay
Overtime Pay Scale Reference Table
The reference table below illustrates how different base hourly rates convert into time and a half overtime rates, along with weekly gross earnings for a standard 45-hour workweek (40 regular hours plus 5 overtime hours).
| Regular Hourly Rate | Time & Half Rate (1.5x) | 40-Hour Regular Pay | 5-Hour Overtime Pay | Total Gross Pay (45 hrs) |
|---|---|---|---|---|
| $15.00 / hr | $22.50 / hr | $600.00 | $112.50 | $712.50 |
| $20.00 / hr | $30.00 / hr | $800.00 | $150.00 | $950.00 |
| $25.00 / hr | $37.50 / hr | $1,000.00 | $187.50 | $1,187.50 |
| $30.00 / hr | $45.00 / hr | $1,200.00 | $225.00 | $1,425.00 |
| $40.00 / hr | $60.00 / hr | $1,600.00 | $300.00 | $1,900.00 |
Exempt vs Non-Exempt Employees Under FLSA
Not every worker qualifies for overtime pay. Federal labor rules divide employees into two legal categories based on salary levels and job duties:
1. Non-Exempt Employees
Non-exempt employees are fully entitled to overtime pay under FLSA regulations. Almost all hourly workers fall into this category. Additionally, salaried employees who earn less than the federal salary threshold or whose job duties do not meet specific managerial guidelines are legally classified as non-exempt and must receive time and a half pay for all hours worked over 40 per week.
2. Exempt Employees
Exempt employees are excluded from FLSA overtime rules. To qualify as exempt, an employee must satisfy three criteria established by the Department of Labor:
- Salary Basis Test: The employee must be paid a predetermined, fixed salary that cannot be reduced based on quality or quantity of work.
- Salary Level Test: The salary must meet or exceed federal minimum thresholds.
- Duties Test: The employee actual job responsibilities must involve executive, administrative, professional, computer software development, or outside sales tasks as defined by federal regulations.
State Specific Overtime Rules and Daily Overtime
Federal law establishes a national minimum standard based on weekly hours. However, state laws can grant broader protections to workers. When state and federal rules conflict, employers must follow the standard that provides higher compensation to the employee.
Several key states enforce daily overtime rules in addition to weekly limits:
- California: Requires time and a half pay for any hours worked beyond 8 hours in a single workday, and double time (2.0x base rate) for any hours worked past 12 hours in a single workday or past 8 hours on the seventh consecutive day of work in a single workweek.
- Nevada: Requires daily overtime for workers earning less than 1.5 times the state minimum wage who work more than 8 hours in a 24-hour period.
- Alaska: Requires daily time and a half overtime for non-exempt employees working more than 8 hours in a single day.
- Colorado: Requires overtime after 12 hours in a single workday or 12 consecutive hours regardless of shift boundaries.
How Non-Discretionary Bonuses Impact Overtime
A frequent error made by employers involves failing to factor bonuses into regular pay rates when computing overtime. Under FLSA rules, non-discretionary bonuses (such as attendance bonuses, production incentives, or safety performance rewards) must be included in the regular hourly rate calculation before applying the 1.5 multiplier.
For example, if an employee earns $20.00 per hour and receives a $100.00 non-discretionary performance bonus during a 50-hour workweek, total regular earnings equal $1,100.00 ($1,000 base pay plus $100 bonus). Dividing $1,100.00 by 50 total hours gives a revised regular rate of $22.00 per hour. The 10 overtime hours must then be paid at $33.00 per hour ($22.00 x 1.5), requiring additional back-pay adjustment for the bonus.
Common Payroll Mistakes and How to Correct Them
Wage theft through improper overtime tracking remains one of the largest sources of labor enforcement actions. Common violations include:
- Off-the-Clock Work: Requiring employees to perform setup work, check emails, or respond to customer messages before clocking in or after clocking out.
- Misclassifying Employees: Labeling hourly workers as independent contractors or administrative exempt managers to avoid paying overtime.
- Averaging Hours Across Pay Periods: Averaging 50 hours in week one and 30 hours in week two to pay 80 regular hours over a bi-weekly period without overtime. FLSA requires each workweek to stand independently.
If you suspect your overtime pay is miscalculated, keep personal time logs, review your weekly pay stubs, and check your earnings with our Time and a Half Calculator and Hourly to Salary Calculator.
