Worked example: 4.5 decimal hours in hours and minutes
4.5 × 60 = 270 minutes. Round to 270 minutes, then divide into complete hours and the remainder: 4h 30m.
The decimal part is a fraction of sixty minutes, not a count of minutes. Half an hour is 30 minutes, not 50. Convert each original entry before summing if your policy rounds entries separately; rounding only the final total can give a different result.
Assumptions and limits
- Non-negative duration, rounded to nearest whole minute. Half-minute ties round upward.
- This is a duration, not a clock time or a pay-rounding recommendation.
- Unpaid breaks must be deducted separately; no overtime or wage rule is inferred.
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Related guides: Hours and pay guides