StratOps, p. 166, Time, modify the current listing:
TIME MAINTENANCE/REPAIR CYCLE
Unless agreed otherwise (or dictated by the conditions of a specific scenario), players have eight hours between each scenario during which they can carry out maintenance and repairs. If players are tracking time across days, weeks, months and so on, then each day provides eight hours of productive work. This is referred to as the Maintenance/Repair Cycle.
To something like this:
TIME MAINTENANCE/REPAIR CYCLE
Most combat units (defined as either one BattleMech, one WorkMech, one conventional or aerospace fighter, one combat vehicle, five small or one medium support vehicle, five ProtoMechs, five battle armors, or 100 infantry) require 8 hours of attention from a tech team once per week. Large support vehicles, DropShips, space stations, and WarShips are maintained by their crews. Satellites generally do not require maintenance.
If players are tracking time across days, weeks, months and so on, then each day provides eight hours of productive work. This is referred to as the Maintenance/Repair Cycle.
Note that the wording may change (as always) when committed to formal errata, especially if we feel the need to tweak to make sure it's all in line with Interstellar Operations. Thank you.