Update UnitSystem.md

wiki/doc/UnitSystem.md

@@ -70,6 +70,12 @@ Description how to build units witht the D-SI format is [here](StructureSIUnits.
 ## Non-SI units of measurement allowed with the SI 
 |D-SI Identifyer|D-SI Medal|SI name|SI symbol |SI base unit expression|D-SI base unit expression|SI Reference| 
 |-:|-:|-:|-:|-:|-:|-:| 
+|\minute|silver|minute|min|s|\second|[1, Table 8]|
+|\hour|silver|hour|h|s|\second|[1, Table 8]|
+|\day|silver|day|d|s|\second|[1, Table 8]|
+|\degree|silver|degree|°|rad|\radian|[1, Table 8]|
+|\arcminute|silver|second (arc second)|"|rad|\radian|[1, Table 8]|
+|\arcsecond|silver|second (arc second)|'|rad|\radian|[1, Table 8]|
 |\hectare|silver|hectare|ha|m2|\metre\tothe{2}|[1, Table 8]| 
 |\litre|silver|litre|l|m3|\metre\tothe{3}|[1, Table 8]| 
 |\tonne|silver|tonne|t|kg|\kilogram|[1, Table 8]|