Time Calculator
Add/subtract durations or find elapsed time between two timestamps
1. Calculation Mode
2. Timestamps
Duration Result
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Total Minutes
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Total Seconds
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Decimal Hours
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How to Use the Time Calculator
- Select Calculation Mode: Choose whether to measure elapsed duration between two specific times or to add/subtract hours and minutes from a base time.
- Enter Timestamps: Input start and end times or specify the base clock time and target modification amounts.
- Compute Duration: Click “Calculate Time” to view total elapsed time expressed in hours, minutes, seconds, and decimal format.
Time Conversion Calculations
1. Converting Minutes & Seconds to Decimal Hours:
Decimal Hours = Hours + (Minutes / 60) + (Seconds / 3600)
2. Midnight Crossings Elapsed Time Formula:
Elapsed Time = (End Time + 24 Hours) – Start Time
Frequently Asked Questions (FAQ)
How does the calculator handle times that pass midnight?
If an end time is earlier than the start time (e.g., starting at 10:00 PM and ending at 6:00 AM), select “Spans Midnight? – Yes” to calculate the correct 8-hour duration.
Why is decimal time useful?
Decimal hours simplify payroll calculations. For instance, 7 hours and 30 minutes translates to 7.5 decimal hours, which can be multiplied directly by an hourly wage.
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