DateTime :: subtractHours - Subtract hours from timestamp value
The number of hours passed in iHours is subtracted from the time value. Time values might become negative, in which case the date will change as well.
Return value: Time stamp ( odaba::DateTime & )
A time stamp combines date and time
Implementation details
odaba::DateTime &
DateTime  :: subtractHours ( int32 iHours )
- iHours
- Hours
Time span in hours.