Time.prg
 Time manipulation functions
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     SecondsAsDays( <nSeconds> ) --> nDays

     Convert numeric seconds to days.

     TimeAsAMPM( <cTime> ) --> cTime

     Convert a time string to 12-hour format.

     TimeAsSeconds( <cTime> ) --> nSeconds

     Convert a time string to number of seconds from midnight.

     TimeAsString( <nSeconds> ) --> cTime

     Convert numeric seconds to a time string.

     TimeDiff( <cStartTime>, <cEndTime> ) --> cDiffTime

     Return the difference between two time strings in the form hh:mm:ss.

     TimeIsValid( <cTime> ) --> lValid

     Validate a time string.