Payroll is due, and you’re reviewing timecards with punches like 8:07 a.m., 4:53 p.m., and 9:02 a.m. If your company uses time clock rounding, you need to adjust those punches — but up or down, and by which rule? 

That’s where confusion begins. The 15-minute rule, 6-minute rule, and 7/8 rule are often treated as the same thing, even though they work differently and have different cutoffs. 

In this article, we break down the differences between the different time clock rounding methods and what federal law actually requires so you can run your payroll knowing your rounding method won’t create problems downstream.

3 common time clock rounding methods

There are three common methods that employers use for time clock rounding: the 15-minute rule (also known as the 7/8 rule), the 6-minute rule, and the 5-minute rule.

1. The 15-minute time clock rounding rule

The 15-minute rule rounds punches to the nearest quarter hour — :00, :15, :30, or :45.

A punch rounds back or forward depending on where it falls in the 15-minute window. The midpoint determines direction: 

• Minutes zero through seven → round back 
• Minute eight and later → round forward

For example, if Sarah is scheduled to start work at 9:00 a.m.

• A clock-in at 8:58 a.m. or 9:07 a.m. rounds to 9:00 a.m.
• A clock-in at 9:08 a.m. rounds to 9:15 a.m.

Across an hour, it works like this:

Punch time	Rounded time
8:53–9:07 a.m.	9:00 a.m.
9:08–9:22 a.m.	9:15 a.m.
9:23–9:37 a.m.	9:30 a.m.
9:38–9:52 a.m.	9:45 a.m.
9:53–10:07 a.m.	10:00 a.m.

This method is common in structured-shift environments with batch timecard approvals — such as retail, hospitality, or clinics — where small minute variations happen regularly but don’t reflect meaningful schedule changes.

In short: Minutes zero to seven round down to the earlier quarter hour. Minutes eight and after round up to the next one.

What is the 7/8 rule?

The 7/8 rule, sometimes called the 7-minute rule, is simply another name for 15-minute rounding. It refers to the seventh- and eighth-minute cutoffs that determine whether time rounds backward or forward.

2. The 6-minute rule (tenth-of-an-hour rounding)

The 6-minute rule rounds time to the nearest 6-minute mark. It’s also called tenth-of-an-hour rounding, because every six minutes equals one-tenth of an hour.

Instead of four quarter-hour blocks, the hour is divided into 10 smaller 6-minute blocks, each with a 3-minute midpoint.

Within each 6-minute block:

• Minutes zero through two → round back
• Minutes three through five → round forward

For example:

• If Alex clocks in at 9:01 a.m. or 9:02 a.m., the time rounds to 9:00 a.m. 
• If he clocks in at 9:04 a.m. or 9:05 a.m., it rounds to 9:06 a.m. 
• If he clocks in at 9:14 a.m, it rounds to 9:12 a.m., not 9:18 a.m., because it hasn’t crossed the midpoint.  

Here’s what the full 10 increments would look like:

Time tracked	Rounded time
8:58 – 9:03 a.m.	9:00 a.m.
9:04 – 9:09 a.m.	9:06 a.m.
9:10 – 9:15 a.m.	9:12 a.m.
9:16 – 9:21 a.m.	9:18 a.m.
9:22 – 9:27 a.m.	9:24 a.m.
9:28 – 9:33 a.m.	9:30 a.m.
9:34 – 9:39 a.m.	9:36 a.m.
9:40 – 9:45 a.m.	9:42 a.m.
9:45 – 9:51 a.m.	9:48 a.m.
9:52 – 9:57 a.m.	9:54 a.m.
9:58 – 10:03 a.m.	10:00 a.m.

Because three minutes is the midpoint, your policy must state how punches landing exactly at that minute are handled.

This method is often preferred by businesses that run payroll in decimal hours and export time directly into payroll software, since clean tenth-of-an-hour totals reduce manual adjustments before payroll runs.

In short: Minutes zero to two round back to the earlier 6-minute mark. Minutes three to five round forward.

3. The 5-minute rule

The 5-minute rule rounds time to the nearest 5-minute mark. The midpoint is two-and-a-half minutes.

Punches before that midpoint round to the earlier mark, and punches after it round to the next one.

For example:

• If Sam clocks in at 9:07 a.m., it rounds to 9:05 a.m.
• If he clocks in at 9:08 a.m, it rounds to 9:10 a.m.

This method is less common because 5-minute increments don’t cleanly convert to decimal hour totals.

In short: Times before the two-and-a-half point round to the earlier 5-minute mark. Times after it round to the next one.

Is time clock rounding legal?

Yes. Under United States federal law, time clock rounding is allowed if it meets two conditions set by the Fair Labor Standards Act (FLSA): 

Rounding must use reasonable increments

Federal guidance allows rounding in small, defined increments, such as:

• Five minutes
• Six minutes
• 15 minutes

Larger increments, such as 30 minutes, aren’t permitted because they significantly alter pay.

Rounding must not reduce employee pay over time

Whichever rounding method you choose, it must be neutral or favorable to the employee overall. You can’t set up a system where employees regularly lose paid time. 

Steven David, Co-Founder and CEO at EZ Movers and Storage, explains:

“The majority of managers believe that rounding off to the nearest fifteen minutes is simply a normal practice of making their payroll simpler. They do not know that a system that solely benefits the owner poses a massive threat of back-pay lawsuits and severe labor audits.”

A compliant rounding policy:

• Applies the same rule to clock-ins and clock-outs
• Rounds both up and down
• Doesn’t consistently favor the employer 

Federal enforcement generally looks at the overall pattern — not isolated punches. 

Time clock rounding rules by state

Federal rules set the baseline, but not all states treat rounding the same way. In some states, it’s accepted when applied properly. In others, it faces closer scrutiny.

Here are the main outliers:

• California: Rounding isn’t banned outright, but courts have questioned its use when employers can track time to the minute using employee time tracking apps. As a result, many employers avoid rounding altogether.
• States with strict “pay for all time worked” enforcement: Some states (such as Massachusetts and New Jersey) emphasize paying employees for every minute worked. While rounding may not be explicitly prohibited, policies that reduce paid time are more likely to trigger complaints or audits. 

In states that don’t address rounding directly, employers typically default to federal guidance — but enforcement can still vary. 

If you operate in more than one state, review your rounding policy against each state’s wage expectations before applying it companywide. With Buddy Punch, you can assign different punch rounding rules to specific employees, including a “Do Not Round” option, making it easier to tailor your approach by location.

Time clock rounding best practices

Once you choose a rounding rule, the next step is to make sure it’s applied correctly:

Lock in one clear rounding method

Changing rules midstream or applying them unevenly can create unnecessary risk. Choose one rounding method and apply it consistently across locations or employee groups. 

Your written rounding policy should clearly state:

• Which rounding rule you’re using.
• The employees or locations it applies to.
• How it applies to punches (for example, both clock-ins and clock-outs).
• Its intended purpose (to remain neutral overall and account for small, unlogged time, like breaks).

Clarify the rule to build trust

Employees shouldn’t have to guess how rounding works. Once your rounding policy is in place, communicate it clearly to prevent confusion or assumptions that time is being shaved off pay. 

Rocky Chai, CEO at Ultra Cleaning, cautions: 

“Ambiguous time rounding rules can erode trust without you noticing. The number one pitfall is implementing rounding without explaining it first. Your workers aren’t stupid and will see their 7:53 clock-in become an 8:00. If you haven’t clearly communicated to them how and why you are doing an artificial rounding rule, the worst interpretations will inevitably follow.”

To build transparency into your process:

• Include your rounding rule in the employee handbook.
• Review it during onboarding.
• Share a simple example showing how it works.
• Post it near time clocks or kiosks (if applicable).

Build neutrality checks into payroll

Since federal guidance focuses on the overall effect of rounding, you can’t set the rule and forget it. To make sure it’s working as intended, build a quick review into your regular payroll workflow.

Tetiana Hnatiuk, Head of HR at Skylum, notes that problems often start when rounding favors one side:

“Most often, companies round only ‘in favor of the employer,’ actually ignoring the real hours of the employee… I would advise you to always apply the principle of neutrality, or round it profitably for the employee if you are not sure. This will look better.”

After all, even losing five to seven minutes per shift can add up to dozens of unpaid hours over a year if rounding consistently favors the employers. 

So, before running payroll:

• Pull a report showing raw punch times and rounded totals for the pay period.
• Compare the totals side by side.
• Look for a pattern where rounded hours consistently come in lower.
• Review at least three recent pay periods (since patterns matter more than one example).
• Adjust your rounding increment or midpoint if you see a consistent downward trend. 

Camille B., Marketing and Operations Manager at Search Party Recruiting, takes a similar approach:

“We keep track of raw timestamps as well as round[ed] hours to establish a zero balance, and we make changes to rounding triggers if the math is always favoring the employer as opposed to being neutral.”

If that pattern appears, it’s also helpful to look beyond the rule itself. Sometimes, unavoidable barriers — such as lines at a shared time clock kiosk — may be causing regular delays in punching in. Where possible, find ways to keep the system fair, such as adding another clock or staggering shift start times.

Regular reviews before payroll runs will help you catch imbalances before they turn into disputes or require payroll corrections down the line. 

How to make time clock rounding easier

Manually reviewing punch times or adjusting rounding rules across locations creates unnecessary work — and unnecessary risk.

Buddy Punch simplifies this process by letting you automate rounding based on your chosen rule. You can:

• Set rounding increments
• Choose whether time rounds up, down, or to the nearest interval
• Apply different rules by location or role
• Round based on punch times or scheduled shifts

Setting it up takes just a few steps:

1. Go to “Settings” and select “Punch Rounding.”

2. Click “Add a New Punch Rounding Rule.”

3. Choose “By Time,” then select whether punches round up, down, or to the nearest increment.

4. If your employees use the Switch option (to change locations or job codes during a shift), check “Apply rounding when using Switch.”

5. Assign the rule to the appropriate employees by checking the boxes next to their names, and click “Save.”

From there, rounding runs automatically.

FAQs

What’s the safest time clock rounding method to use?

The safest method is the one that stays neutral over time. The 15-minute and 6-minute rules are the most common when applied consistently. But if you can track exact minutes with a tool like Buddy Punch, skipping rounding altogether may reduce risk even further.

Can rounding affect overtime calculations?

Yes. If rounding changes total weekly hours, it can affect whether overtime is triggered and how that pay is taxed. That’s why it’s important to review rounded totals before payroll runs. Many teams use Buddy Punch to automate rounding first, then calculate overtime from finalized totals. 

Should salaried employees be included in rounding?

Rounding applies to nonexempt (hourly) employees whose pay depends on recorded time. Exempt salaried employees are paid based on salary, not hours worked, so rounding typically isn’t relevant. 

Contributors

• Steven David, EZ Movers and Storage, Co-Founder & CEO
• Rocky Chai, Ultra Cleaning, Chief Executive Officer
• Tetiana Hnatiuk, Skylum, Head of HR
• Camille B., Search Party Recruiting, Marketing and Operations Manager