How do I convert Day to Hour (h)?

1 day equals 24 h using SI-based conversion and precise factors.

What is the formula to convert Day to Hour (h)?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/day-to-h/1

Category: Time

Value From To Precision

24 h

1 day = 24 h

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Time and applying exact factors where applicable.

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Timekeeping blends SI seconds with civil conventions.

Day

24 hours (civil); astronomical definitions vary slightly.

History: Rooted in Earth’s rotation.

Hour (h)

60 minutes; 3,600 s.

History: Adopted globally in civil timekeeping.