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year

yr standard definition

v0.1 defines 'year' as the Julian year = 365.25 days = 31 557 600 s, and labels it (rulebook B.1, D.13). It is never silently equated to 365 or 360 days.

Definition

Dimension
Time
Symbols
yr, a
System
convention
Base factor
×31557600
Exactness
standard definition

Fixed by a published standard or convention (toe, therm, IT cal/BTU).

Also known as

yearsyrsjulian year

Sources

Common conversions

for 1 yr
second31,557,600s standard definition
minute525,960min standard definition
hour8,766h standard definition
day365.25day standard definition
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© 2026 Universal Converter · v0.1 — an explanatory reference tool, not a compliance calculator. Sources over invented numbers · exact vs. estimate kept distinct.