What is the earliest time when Ajay would compete C?

Given takes are A, B, C, D, E (here we will assume the condition to complete the work at the earliest)
From the 1^stcondition- Task A → from 11 am to 9 am to 11 am,
From the 2^nd condition B → From 11 am to 12 noon (Since it has started after completion of A)
From the 3^rd condition C → From 12 noon to 1 pm
Task D's one hour work will be done along with B.
D's second hour work will be done along with C.
Hence to commence E, D must complete 3 hrs.
Hence timing of task D → from 11 am to 2 pm and
After this the remaining task E → From 2 pm to 3 pm