1. Standard office day
Arrival: 9:00 AM · Required: 8h · Break: 30m
Leave time: 5:30 PM. This is the typical 9-to-5 pattern with a half-hour unpaid lunch.
What Time Can I Leave Work?
Calculate your office exit time using your arrival time, required working hours, and break time.
Calculate Your Leave Time
Your leave time
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Time remaining:
0%
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How the Calculation Works
LeaveTime uses one simple, transparent formula that runs entirely in your browser:
Leave time = Arrival time + Required working time + Unpaid break
For example, 9:42 AM + 8h 30m + 45m = 6:57 PM. No data ever leaves your device — the math happens in JavaScript on this page.
- Works with 12-hour or 24-hour input
- Handles overnight shifts (result may be the next morning)
- Assumes the break is unpaid (you must make it up)
Five Worked Examples
2. Late arrival
Arrival: 10:15 AM · Required: 8h · Break: 45m
Leave time: 7:00 PM. Every minute you arrive late pushes your leave time by the same minute.
3. Shorter Friday
Arrival: 9:00 AM · Required: 6h · Break: 30m
Leave time: 3:30 PM. Useful when your company reduces Friday hours.
4. Overnight shift
Arrival: 10:30 PM · Required: 8h · Break: 30m
Leave time: 7:00 AM (next day). LeaveTime automatically wraps past midnight.
5. Paid vs. unpaid break
Arrival: 9:00 AM · Required: 8h · Break: 60m unpaid vs 0m paid
With an unpaid 60-minute lunch, you leave at 6:00 PM. If your break is paid, enter
0 in the break field — you'd leave at 5:00 PM.
Overnight Shifts
If your leave time crosses midnight, LeaveTime normalizes the result using
total minutes mod 1440. A shift starting at 22:30 for 8h with a 30-minute break lands at
07:00 the next morning. The result card also notes "next day" so you don't misread the
time.
Common Mistakes to Avoid
- Confusing 8:30 with 8.5 hours. "8:30" here means 8 hours 30 minutes. In decimal, that's 8.5.
- Forgetting to add your unpaid break. If lunch is unpaid, it must be added — otherwise your leave time will be too early.
- Mixing AM and PM. Prefer 24-hour mode if you frequently misread AM/PM.
- Applying the wrong company schedule. Confirm your required duration with HR before trusting the number.
Frequently Asked Questions
Does LeaveTime store my times on a server?
No. All calculations run in your browser via JavaScript. Only your preferred work duration
and format may be saved in your browser's localStorage, which never leaves your device.
Do I need to install anything?
No. Open the page in any modern browser (Chrome, Safari, Firefox, Edge) — it works offline once loaded.
How do I handle a paid break?
If your break is paid, set the break field to 0. Only enter the number of minutes you
must make up.
Can I use decimal hours (e.g., 7.5)?
Choose Custom and enter 7 hours and 30 minutes. LeaveTime always
uses hours + minutes to avoid rounding errors.
What about overnight shifts?
Fully supported. If the computed leave time crosses midnight, LeaveTime shows it as the next morning (with a "next day" note).
Is this legal/HR advice?
No. LeaveTime is a general-purpose calculator. Always follow your employer's policies and local labor laws.