HELP-PROMPT: Answer must be 5-9 characters in length, a set of two times of the day separated by a dash.
DESCRIPTION: This is two times of the day, particular to this hospital location, that define the shift by designating the range over which an action is to take place. The two times must be in military format and must both be
either two or four characters, and be separated by a dash, such as '09-13' or '0900-1300'.
NOTES: XXXX--CAN'T BE ALTERED EXCEPT BY PROGRAMMER