According to WKBW these are the official Trick Or Teat Times for all kiddies

Amherst: No Specified Time

Alden: 6-8 p.m.
Batavia: No Specified Time

Blasdell: 5:30-8:30 p.m.

Buffalo: Until 8 p.m.

Cassadaga: 5-7 p.m.

Carrollton: 6-7 p.m.

Cheektowaga: 6-8 p.m.

Clarence: 5-8 p.m.

Depew: 6-8:30 p.m.

Dunkirk: 4-7 p.m.

East Aurora: No Specified Time

Ellicottville: 6-8 p.m.

Elma: No Specific Time

Evans: 6-8 p.m.

Franklinville: 6-8 p.m.

Fredonia: 4-7 p.m.

Gowanda: 6-8 p.m.

Grand Island: 5-8 p.m.

Hamburg: 6-8 p.m.

Lackawanna: 6-8 p.m.

Lancaster: 6-8:30 p.m.

Lewiston: 4-7p.m.

Medina: 5:30-7:30 p.m.

Newfane: 4-7p.m.

Niagara Falls: 4-7 p.m.

North Collins: 6-8 p.m.

North Tonawanda: 5-8 p.m.

Olean: 6-8 p.m.

Sardinia: No Specified Time

Salamanca: 6-8 p.m.

Silver Creek: 5-8 p.m.

Town of Tonawanda: Starts at dusk

Village of Cattauragus: 6-8 p.m.

Warsaw: Parade at 6 pm. Curfew 9pm

Wellsville: 6-8 p.m.

West Seneca: 6-8 p.m.