Halton District School Board
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Halton District School Board 

Phone: (905) 335 - 3663 ext 3260 
 
 
 
Hours of Operation: Monday to Friday, 8:30 am to 4:30 pm (EST)

OneHSN Support will be closed for the Civic Holiday on August 3rd, 2026. We will respond to your request during regular business hours.
Session: a53152a5-85c8-4dc2-8a62-dfaae3ae4213
Request: abb631a2-4aa6-45b0-8e94-ba9119b8a6f6
Timestamp: 8/1/2026 1:43:43 AM +00:00
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