Time Card Calculator
Calculate work hours and earnings from clock in/out times
Time Summary
How Does the Time Card Calculator Work?
The time card calculator computes your total work hours and earnings by calculating the difference between clock-in and clock-out times, subtracting any break periods, and multiplying by your hourly wage rate. This tool helps employees verify paycheck accuracy and helps employers process payroll efficiently without manual calculations.
Enter your start time, end time, break duration in minutes, and hourly rate to see instant results. The calculator handles standard shift formats and accounts for unpaid break time, showing both total hours present and actual billable work hours that determine your pay.
What Counts as Paid vs Unpaid Break Time?
Federal law (FLSA) doesn't require employers to provide breaks, but when offered, short breaks of 5-20 minutes are typically paid time. Meal breaks of 30 minutes or longer are usually unpaid if the employee is completely relieved of duties. Our calculator assumes break time is unpaid, subtracting it from total hours to determine compensable work time.
State laws vary significantly regarding break requirements. California requires 30-minute unpaid meal breaks for shifts over 5 hours and paid 10-minute rest breaks. Other states have different rules, so check local labor laws to ensure proper break accounting for your situation.
Standard Work Week Hours Reference
| Schedule Type | Daily Hours | Weekly Hours |
|---|---|---|
| Full-time (Standard) | 8 hours | 40 hours |
| Full-time (4x10) | 10 hours | 40 hours |
| Part-time | 4-6 hours | 20-30 hours |
| Extended Shift | 12 hours | 36-48 hours |
How Is Overtime Pay Calculated?
Under FLSA, non-exempt employees earn overtime at 1.5x their regular rate for hours exceeding 40 per week. Some states require daily overtime after 8 hours worked in a single day. California workers also earn double-time (2x) after 12 hours in one day or after 8 hours on the seventh consecutive workday.
Track your weekly hours carefully to determine overtime eligibility. If your hourly rate is $20 and you work 45 hours, you'd earn $800 for the first 40 hours plus $150 (5 hours x $30 overtime rate) for a total of $950. For percentage calculations, check our percentage calculator.
Tips for Accurate Time Tracking
Record clock-in and clock-out times immediately when they occur rather than relying on memory at day's end. Note exact break start and end times separately. Many employers round time to the nearest quarter hour, so a 9:08 arrival might count as 9:15. Keep your own records to verify employer calculations match actual worked hours.
Frequently Asked Questions
What is a time card calculator?
A time card calculator is a tool that computes total work hours and earnings from clock-in and clock-out times. It subtracts break periods and multiplies remaining hours by your wage rate to determine total pay, helping employees and employers track time and wages accurately.
How do I calculate hours worked from time cards?
Subtract your start time from your end time to get total hours present, then subtract any unpaid break time. For example, clocking in at 9:00 AM and out at 5:00 PM equals 8 hours total. If you took a 30-minute unpaid lunch, your billable hours are 7.5 hours.
Are breaks included in work hours?
Short breaks of 5-20 minutes are typically paid and included in work hours. Meal breaks of 30+ minutes where you're fully relieved of duties are usually unpaid and not counted as work time. Specific rules vary by state and employer policy.
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Last Updated: January 2026 | Reviewed for accuracy