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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →To finish eight hours of work, add eight hours to your start time, then add any unpaid break. For example, a 9:00 a.m. start with a 30-minute unpaid lunch ends at 5:30 p.m. If your break is paid and included in the eight-hour shift, don’t add it again. Clockify’s free calculator handles that single-shift calculation and lets you include an optional break.
How to calculate when an eight-hour shift ends
First decide what “eight hours” means: eight hours of work, or eight hours elapsed from arrival to departure. When you need to complete eight hours of work, use this formula:
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Shift end = shift start + 8 hours + unpaid break duration
| Start time | Work time | Unpaid break | End time |
|---|---|---|---|
| 9:00 a.m. | 8 hours | 30 minutes | 5:30 p.m. |
| 8:00 a.m. | 8 hours | None | 4:00 p.m. |
| 9:00 a.m. | 8 hours | 1 hour | 6:00 p.m. |
These are arithmetic examples, not decisions about whether a break is legally paid. If a paid break is already part of the shift duration, don’t add it on top of that duration. If you mean an eight-hour span at the workplace, a 9:00 a.m. start ends at 5:00 p.m., but an unpaid meal within that span means fewer than eight hours of work.
#1 Best Overall
- Digital alarm clock with a 0.7-inch green LED display for easily checking the time at a glance
- Built-in nightlight gently illuminates a dark room
- Repeating snooze function makes it possible to sleep a little longer
- AC powered with integrated power supply. Batteries may be used as a backup power source to ensure time and alarms are retained in memory for 8 hours (refer to User Manual for details)
- Measures 4.5 x 3.5 x 2.4 inches (LxWxH); weighs 0.4 pounds (6.6 oz) Note: Batteries are not included
How to use Clockify’s 8-hour workday calculator
Clockify describes its tool as a free online calculator for finding a shift end time. It accepts a start time, a shift duration (eight hours by default), and an optional break. Clockify also offers 12-hour and 24-hour display formats. The following describes the controls and features on Clockify’s calculator page; it is not a claim of independent testing.
- Choose the 12-hour or 24-hour time format.
- Enter your shift start time.
- Set the shift duration. Leave it at eight hours if you need eight hours of work.
- Enter an unpaid break, if applicable. Clockify’s guide says to enter break duration as hh:mm; its two-hour example can be entered as “0200” or “200.” Skip the break field when the break counts as work time.
- Calculate the end time. Clockify says the result appears in hh:mm format. Its page lists options to reset, generate a shareable link, print, or export the result as CSV.
Clockify’s guide gives another example: an 8:00 a.m. start and a 9-hour-30-minute shift returns 5:30 p.m. when no break is entered. The duration setting is useful if your required work period is not exactly eight hours.
Rank #2
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Does an unpaid lunch count in an eight-hour workday?
For scheduling arithmetic, an unpaid lunch extends the time between clock-in and clock-out because it is not part of the work hours you need to complete. Whether a particular break is legally unpaid depends on applicable rules and the circumstances of the break—not on what an end-time calculator says.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →In the United States, the Department of Labor says, “The FLSA does not require lunch or coffee breaks.” If an employer provides short breaks, usually about 5 to 20 minutes, federal guidance generally treats them as compensable work time. Bona fide meal periods, typically at least 30 minutes, generally are not compensable when the employee is completely relieved from duty. A break’s length alone does not make it unpaid; state or local requirements may also differ. See the Department of Labor’s breaks and meal periods guidance and its FLSA questions and answers.
Rank #3
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- BEDROOM CLOCK WITH DIMABLE LED DISPLAY: The compact digital clock (6.2" x 3" x 2.8") has a 48mm blue bold font for easy time viewing from a distance. You can easily toggle between 5 brightness levels, from very bright to completely dim. It also offers 12 or 24-hour time formats to meet different time reading habits.
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Which Clockify calculator fits your question?
| Tool | Best for | Inputs and output |
|---|---|---|
| 8-Hour Workday Calculator | Finding the end time for one shift | Start time, duration, optional break; returns a shift end time. |
| Work Time Calculator | Adding time across a day or multiple days, or converting totals | Start and end times, breaks, and workdays; provides totals such as hh:mm, minutes, and decimal hours. |
| Time Card Calculator | Recording daily hours and estimating pay or overtime | Start, end, and break entries; includes optional pay and overtime calculations. |
Use the single-shift calculator when the answer you need is “What time do I get off?” The Work Time Calculator is better for totals or decimal-hour results. For a time-card workflow or optional pay and overtime estimates, Clockify describes those features in its separate Time Card Calculator.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the end-time result does not tell you
An end-time calculation does not determine whether your break must be paid, whether your schedule complies with state or local break rules, or whether overtime is owed. The Department of Labor says covered, nonexempt employees generally must receive overtime at one and one-half times their regular rate for hours worked over 40 in a workweek. Applying that rule requires knowing which hours count, the relevant workweek, and whether the worker is covered and nonexempt; an end-time result alone cannot establish those facts. Check the applicable rules or consult a qualified adviser for a pay or legal question.
Quick Recap
Best Value
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Rank #4
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