The CAR’s says the following: (1st Jan 1998 edition)
PART IV CIVIL AVIATION OPERATIONS
8.4 FLIGHT AND DUTY LIMITATIONS
8.4.1 Definitions
Duty Period:
ALL The time spent by a crewmember in flying or preparation for flight or executing any functions related to his/her employment such as training, travel, official meetings or administrative duties. Where two or more duty periods are separated by an interval of less than ten hours, the period from the start of the first duty to the end of the last duty shall constitute a single duty period.
Flight Time:
The TOTAL time from the moment an aircraft first moves under its own power for the purpose of flight until it comes to a complete stop at the end of its flight.
8.4.4 The Maximum flight times for a crew member are :
a) 10 Hours in any period of 24 consecutive hours for two-pilot operations
b) 100 Hours in any period of 28 consecutive days
c) 300 Hours in any period of 90 consecutive days
d) 1000 Hours in any calendar year
8.4.5 Unless specifically authorized by the GCAA the maximum duty time for a crew member is 15 hours in any period of 24 consecutive hours.