Units of measurement
From value
To value
Calculations
Year (yr)
Day (d)
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Information
Year (yr)
Year (yr) is a unit of time equal to 365 or 366 days in a leap year. It is widely used for calendar and historical timekeeping.
Day (d)
Day (d) is a unit of time equal to 24 hours. It is used for calendar and daily life measurements.