Time calculation adds, subtracts, and converts time durations. Hours, minutes, seconds arithmetic. Essential for scheduling, payroll, and project planning.
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Pro Tips
Borrow 60 minutes when subtracting.
Carry over when minutes exceed 60.
24-hour format avoids AM/PM confusion.
Time zones affect scheduling.
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Fun Facts
"Base-60 system from Babylonians."
"Leap seconds added to UTC occasionally."
"Atomic clocks accurate to 1 second per 100M years."
