Lunch starts at 12:00 PM
12:00 PM + 45 minutes
45 Minute Lunch Break Calculator
Enter one or two times to find when a 45-minute lunch ends, when your workday ends, or how many net hours you worked after lunch.
FreeNo sign-upRuns on your device
Fixed lunch length
45-minute lunch
Return to work atSame day
12:45 PM
Exactly 45 minutes after your lunch starts
This page always uses a 45-minute break. Settings save on this device; specific clock times reset on a new date.
The formula
How this calculator works
45 minutes = 0.75 hours · Return = lunch start + 45 min · Net work = clock-out − clock-in − 45 min
Choose the answer you need. Lunch return adds 45 minutes to the break start. Clock-out adds required work plus a fixed 45-minute unpaid lunch to the counted start. Net hours subtracts 45 minutes from the shift span. Times that pass midnight automatically continue into the next day.
Real examples
Common workday calculations
Return at 12:45 PM
Lunch starts at 12:15 PM
12:15 PM + 45 minutes
Lunch starts at 12:30 PM
12:30 PM + 45 minutes
Eight paid hours from 9:00 AM
8 hr required work + 45-minute unpaid lunch
Good to know
Edge cases and common mistakes
- A lunch that starts at 11:30 PM ends at 12:15 AM the next day.
- An end time earlier than clock-in is treated as an overnight shift.
- Use the optional earliest counted start only when it matches your workplace’s flex-window policy.
- A paid lunch normally remains inside paid work time, so do not subtract or add it again.
- A 45-minute lunch is 0.75 decimal hours, not 0.45 hours.
Answers
Frequently asked questions
What time do I return from a 45-minute lunch?
Add 45 minutes to the time your lunch starts. For example, a lunch that starts at 12:15 PM ends at 1:00 PM.
How many hours is a 45-minute lunch?
Forty-five minutes equals 0.75 hours in decimal time because 45 divided by 60 is 0.75.
Does a 45-minute lunch change my clock-out time?
An unpaid 45-minute lunch extends the workday by 45 minutes. A paid lunch is normally already included in paid time and should not be added again.
Can the calculator handle an overnight shift?
Yes. A lunch return or clock-out after midnight is labeled as the next day, and net-hours mode treats an earlier clock-out value as the following day.
What does earliest counted start mean?
Some flex schedules only begin counting work at a stated opening time. When you enable this option, the clock-out estimate uses the later of your actual clock-in and the earliest counted start you enter.