Autumn - 1st day of the month (Real month)

Spring - 15th of the month

Summer - 22nd - end of the month

Barrel Racing -Speed, Stamina, Gallop

Cutting - Stamina, Dressage, Speed

Trail Class - Dressage, Trot, Jumping

Reining - Gallop, Dressage, Stamina (New forest)

Western Pleasure -Trot, Stamina, Dressage (New forest)

Trot - Trot, Speed, Dressage

Gallop - Gallop, Speed, Dressage

Dressage - Dressage, Trot, Gallop

Cross Country - Stamina, Dressage, Jumping (Dartmoor)

Show Jumping - Jumping, Dressage, Speed 

Isis Perk 

"when you cover a (non-divine) mare as the first covering of the day on the 1st day of each month (after the daily update), she can give birth to between 3 and 5 identical foals."