I tink it depends on Unit and Formation.
In airforce, we train as early as Feb during my NS days as
GOH.
By March, GOH formation will be training. After that by
April/May Combine training with other marching contigents.
But days in GOH are really memorable.... Air force knock it
down! hahaha!
GOH mah, of cos memorable haha
weekends like that gone O.o