It seems you are dictating, on the split, normal off/on duty (on blocks + 30 minutes followed by a 1 hour report), normally, if the operator has any sense, on a split these off/on duty times may be reduced by perhaps 50% on the basis, I guess, that you don't need to put the beast to bed and/or complete all end of duty paperwork and you are reporting back to an aircraft that hasn't been anywhere since you last left it.
That doesn't really work in most airline environments as the aircraft usually is used for something else during the break and indeed might be another one when you return from the break.