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To track employee overtime, keep accurate records of each covered, nonexempt employee’s hours worked each day and each workweek, then use those actual hours to calculate pay. Federal law does not require a time clock or a specific timekeeping system: a clock, timekeeper, paper record, or digital tool can work if the records are complete and accurate.
What federal law requires you to track
Under the Fair Labor Standards Act (FLSA), covered employers must maintain records for covered, nonexempt workers. The U.S. Department of Labor’s Fact Sheet #21: Recordkeeping Requirements under the Fair Labor Standards Act and its Handy Reference Guide to the Fair Labor Standards Act describe the federal recordkeeping duties. The FLSA requires accurate information, not a particular form.
Keep records that identify the employee and document the information needed to establish hours and wages, including:
- The day and time the workweek begins.
- Hours worked each day and total hours worked each workweek.
- The pay basis and regular rate of pay.
- Straight-time and overtime earnings.
- Wage additions or deductions, total wages paid, and the dates and pay period covered by each payment.
These are federal FLSA guidelines, not a complete checklist for every employer. Coverage, worker classification, state and local rules, collective bargaining agreements, and industry-specific requirements can change what applies.
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Do employees have to punch a time clock?
No. A time clock is optional. The Department of Labor says, “Employers may use any timekeeping method they choose,” and its Small Entity Compliance Guide explains that employees entitled to overtime pay are not required to punch a clock. An employer may use a clock, a designated timekeeper, or employee-maintained time records, provided the resulting records accurately capture hours and wages.
The compliance question is whether the records are accurate and complete—not whether a particular device or app was used. A physical employee time clock is one possible tool, not a guarantee of compliance or a DOL-endorsed product. Paper timesheets and digital tracking can also work.
How to record actual hours and overtime
Start with the employer’s workweek
Record the workweek’s starting day and time, then total hours worked within that defined week. Keep both daily hours and the weekly total so actual time can be checked against the schedule and used in payroll calculations.
Use schedules as a baseline, not a substitute for actual hours
If an employee follows a stable fixed schedule that rarely changes, the employer may retain that schedule and record deviations. When an employee works longer or shorter than scheduled, document the actual hours; do not let the scheduled shift overwrite time actually worked.
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Choose the level of detail that fits the schedule
For flexible schedules, the Small Entity Compliance Guide says accurate daily totals may be sufficient; exact clock-in and clock-out times are not always required under the cited federal guidance. Employers still need accurate workweek totals and payroll records. Keep enough detail in the chosen method to identify and document changes and support wage calculations.
Document exceptions and corrections
When actual hours differ from the schedule, record the difference in the timekeeping process and preserve a clear record for payroll. A practical workflow can include an employee submission, supervisor review, and a documented correction trail. Those workflow choices are operational safeguards, not a prescribed federal form.
Choosing a tracking method
Compare methods by whether they capture accurate daily and weekly hours, record schedule deviations, fit fixed, flexible, remote, or mobile work, support payroll calculations, and allow records to be retained and retrieved. Also consider employee access, how corrections are handled, export capability, setup effort, and cost. These are practical selection criteria, not a Department of Labor scoring system.
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| Method | Potential fit | What to verify |
|---|---|---|
| Employee time clock or punch clock | Workplaces where employees can reliably use a shared or assigned clock. | That missed punches and schedule changes can be documented and corrected, and records can be retained or exported for payroll. |
| Paper timesheet or work-hours calendar | Small teams or workplaces where a simple employee-maintained record is practical. | That submissions are complete, reviewed, and retained in a form usable for wage calculations. |
| Digital timekeeping tool | Teams needing electronic submission, access, or export workflows, including remote or mobile staff. | That it captures actual daily and weekly hours, supports corrections, and provides retrievable records. The cited guidance does not make a particular app or software mandatory. |
The Department of Labor links to a free worker timesheet app and a printable work-hours calendar on its Recordkeeping page. These are worker-facing resources, not a substitute for an employer’s payroll and recordkeeping responsibilities.
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How long to keep records
Fact Sheet #21, revised July 2008, gives these federal FLSA retention periods:
| Record category | Federal retention period in Fact Sheet #21 | Examples named by the Department of Labor |
|---|---|---|
| Payroll records, collective bargaining agreements, and sales and purchase records | At least three years | Payroll records and related listed records |
| Records used to calculate wages | Two years | Time cards, piecework tickets, wage-rate tables, work schedules, and records of wage additions or deductions |
These are the periods stated in the cited federal fact sheet; other applicable laws, jurisdictions, or industries may require different or longer retention.
Check the rules that apply to your workplace
Before using this as a complete policy, confirm whether the employer and workers are covered by the FLSA, whether each worker is nonexempt, and whether state or local overtime rules, collective bargaining terms, or industry-specific requirements add obligations. The federal guidance here does not resolve those facts for a particular workplace.
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