The Electronic Prescribing (eRx) initiative is a Defense Health Agency, Pharmacy Operations Division project that allows civilian providers to electronically transmit prescriptions to military pharmacies.
More evident from high latitudes, a hemisphere's winter solstice occurs on the day with the shortest period of daylight and longest night of the year, when the sun's daily maximum elevation in the sky is at its lowest. Although the winter solstice itself lasts only a moment in time, the term sometimes refers to the day on which it occurs.
This Sunday, 21 December, the northern hemisphere will experience the shortest day of its year, marked at 23:03 GMT by an astronomical phenomenon known as the winter solstice-the moment the North Pole is tilted furthest from the sun as the Earth continues on its orbit. The solstice doesn't always occur on 21 December.