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Division 2 UNITS WHICH ARE DEFINED ON THE BASIS OF SI UNITS BUT ARE NOT DECIMAL MULTIPLES OR SUBMULTIPLES THEREOFX1

United Kingdom

Quantity	Unit
The character (*) after a unit name or symbol indicates that it does not appear in the lists drawn up by the CGPM, CIPM o BIPM. This applies to the whole of this Annex.
No international symbol exists.
Quantity	Name	Symbol	Value
Plane angle	revolution* ^f1 ^f2		1 revolution = 2 π rad
	grade* or gon*	gon*	$1 gon = \frac{π}{200} rad$
	degree	°	$1° = \frac{π}{180} rad$
	minute of angle	′	$1′ = \frac{π}{10800} 10800 rad$
	second of angle	″	$1″ = \frac{π}{648000} 648000 rad$
Time	minute	min	1 min = 60 s
	hour	h	1 h = 3 600 s
	day	d	1 d = 86 400 s

Note:

Annotations

Editorial notes

X1: Substituted by Corrigendum to Council Directive 80/181/EEC of 20 December 1979 on the aproximation of the laws of the Member States relating to units of measurement and on the repeal of Directive 71/354/EEC (Official Journal of the European Communities No L 39 of 15 February 1980).

Footnotes

f1: The character (*) after a unit name or symbol indicates that it does not appear in the lists drawn up by the CGPM, CIPM o BIPM. This applies to the whole of this Annex.
f2: No international symbol exists.