9-to-6 office shift with 1-hour lunch break
Start 9:00 AM, end 6:00 PM = 9 hours elapsed. Minus 60-minute lunch = 8:00 worked hours = 8.0 decimal. Standard corporate workday under most Indian company HR policies.
Hours Calculator - Calculatrice en ligne gratuite
Calculate hours and minutes between two clock times - handy for timesheets, billable hours, gym duration tracking and shift planning. Optional break-time deduction for accurate work-hour totals.
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If earlier than start, treated as overnight
Worked hours (HH:MM)
08:00
Decimal hours
8.0000
hours × rate = pay
Total minutes
480
Une partie du contenu est encore affichée en anglais.
Comprendre : Hours Calculator
Hours calculator answers a question millions of working people face every day: 'I started at 9 AM and finished at 6:30 PM with a 45-minute lunch break - how many hours did I actually work?' The answer is 8:45 worked hours (9 hours 30 minutes elapsed minus 45 minutes break). Manually computing this is error-prone, especially when shifts cross midnight (10 PM to 6 AM = 8 hours, not -16). This calculator handles all the edge cases automatically and outputs both HH:MM format (for schedules) and decimal hours (for payroll multiplication with hourly rate).
Heavy users in India: hourly-wage workers (factory labour, construction, healthcare staff, hospitality workers), freelance consultants billing by hour, IT support staff doing on-call hours, gig workers (Swiggy, Zomato, Ola, Uber drivers logging work time), and HR professionals processing payroll. The Indian Factories Act caps adult worker daily hours at 9 with weekly maximum 48; anything beyond becomes overtime at double pay. This calculator gives you the worked hours; multiply by hourly rate for wage, or compare against 9/48 hour thresholds for overtime computation.
Utiliser Hours Calculator en 4 étapes
Enter the start time (24h or AM/PM).
Enter the end time.
Optionally enter break minutes to deduct.
See worked hours in HH:MM and decimal format.
Comment fonctionne Hours Calculator
Both times are converted to minutes since midnight. End − start gives the diff. If end is earlier than start, 24 hours are added (overnight shifts). Break minutes are subtracted last.
Formula
Hours = (End − Start) − Break minutes If End < Start: add 24 hr (overnight)
- End, StartClock times
- BreakUnpaid break in minutes
Comment Hours Calculator obtient son résultat
Algorithm: convert start and end times to minutes since midnight (00:00). 9:30 AM = 570 minutes; 6:00 PM = 1080 minutes. Subtract: 1080 - 570 = 510 minutes = 8 hours 30 minutes. Subtract break minutes for net worked time. Output both HH:MM (8:30) and decimal (8.5).
Overnight shift handling: when end is earlier than start (e.g., 10 PM to 6 AM), the calculator detects this and adds 24 hours (1440 minutes) before subtracting. So 6 AM = 1800 (treated as 30:00 next day), minus 10 PM = 1320 (treated as 22:00 today) = 480 minutes = 8 hours. Works seamlessly for night shifts, hospital duty rotations, and ATM/security guard schedules.
Break handling: in India, breaks are typically unpaid (deducted from working hours). The Factories Act requires a 30-minute break for every 5 hours of work; many IT and corporate employers grant 60-minute lunch breaks. Short tea breaks (5-15 minutes) are usually paid (not deducted). For payroll, deduct only unpaid breaks. Enter the total break minutes for the day; the calculator subtracts them from gross elapsed hours.
Exemples résolus
Hospital night shift: 10 PM to 7 AM with 30-min meal break
10:00 PM → 7:00 AM = 9 hours elapsed (crosses midnight). Minus 30 minutes = 8:30 worked = 8.5 decimal. Hospital nurse and doctor rotations follow this pattern.
Freelance billable: 10:30 AM start, 4:15 PM end, 45-min lunch
10:30 → 16:15 = 5h 45min elapsed. Minus 45 min lunch = 5:00 worked = 5.0 decimal. At ₹1,500/hr: ₹7,500 billable for the session.
Quand utiliser Hours Calculator
- Daily timesheet computation for shift workers.
- Freelance hourly billing - converting work to billable hours.
- Overtime calculation - comparing against 9 hour daily or 48 hour weekly limit.
- Hospital and healthcare staff shift tracking.
- Gig worker income tracking - drivers, delivery partners.
- Factory and manufacturing shift planning.
- Security guard and watchman duty roster computation.
- Gym workout duration tracking.
Erreurs et pièges courants
- Forgetting to deduct unpaid lunch break - overstates worked hours.
- AM/PM confusion. 12:00 AM is midnight, 12:00 PM is noon.
- Not handling overnight shifts. Use the calculator's auto-detection.
- Mixing decimal and HH:MM in payroll. Pick one format and stick with it.
- Including paid short breaks in deductions - they shouldn't be subtracted.
Tirez le meilleur de cet outil
- Use 24-hour format (00:00 to 23:59) to avoid AM/PM ambiguity.
- For overtime: hours > 9 per day or > 48 per week qualifies under Indian Factories Act, at double pay.
- Convert HH:MM to decimal before multiplying by hourly rate.
- Track breaks separately by type - paid vs unpaid - for accurate compensation.
- Pair with the time, time-card and payroll calculators on this site for full work-hour management.
Questions sur Hours Calculator
How do I handle overnight shifts?
Just enter the start (e.g. 22:00) and end (06:00). The calculator detects end < start and adds 24 hours, giving 8 hours.
Do I always deduct break time?
Depends on your contract. In India, breaks are typically unpaid (deducted). In some sectors, short breaks (<15 min) are paid (not deducted).
What about lunch breaks across multiple shifts?
Add up all break minutes and enter the total. Or use the Time Card Calculator for multi-day, multi-break tracking.
Decimal hours vs HH:MM?
Decimal is for payroll math (hours × rate). HH:MM is for human-readable schedules. Both shown.
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