Hour of sleep
The abbreviation h.s. is from the Latin "hors somni" (at the hour of sleep) or bedtime.It can also be an abbreviation for half strength.
I suppose its "hora somni" (Latin), HS.
The medical abbreviation for bedtime is h.s. (hora somni).
qh is the medical abbreviation for every hour.
The abbreviation stands for Miles Per Hour.
hr
The abbreviation hr is used for the word hour.
MWh
KWH
17 dollars an hour
HS (Hour of Sleep) example: Tylenol 325 mg 2 tablets (650 mg) P.O. (Per Os, means by mouth) at HS
h= hour