Yes, those durians in Singapore are from Malaysia. I live in the southern tip of Peninsula Malaysia.
It is just half and hour away from Singapore. During the durian season I use to see tons of them
being transported into Singapore. Since it is so close by, the durians you get in Singapore should
be as fresh as the ones from Malaysia. The D24 is the most popular one produced commercially.
The season comes twice a year. We purchase and consume durians every season.